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DeFi Hacks Reproduce - Foundry

Reproduce DeFi hack incidents using Foundry.

195 incidents included.

This repo is only for the educational purpose.

Let's make Web3 secure! Join Discord

Notion: 101 root cause analysis of past DeFi hacked incidents

Transaction debugging tools

Getting Started

  • Follow the instructions to install Foundry.

  • Clone and install dependencies:git submodule update --init --recursive

Web3 Cybersecurity Academy

All articles are also published on Substack.

OnChain transaction debugging (Ongoing)

List of Past DeFi Incidents

20230424 Axioma

20230419 OLIFE

20230416 Swapos V2

20230415 HundredFinance

20230413 yearnFinance

20230412 MetaPoint

20230411 Paribus

20230409 SushiSwap

20230405 Sentiment

20230402 Allbridge

20230328 SafeMoon Hack

20230328 THENA

20230325 DBW

20230322 BIGFI

20230317 ParaSpace NFT

20230315 Poolz

20230313 EulerFinance

20230308 DKP

20230307 Phoenix

20230227 LaunchZone

20230227 SwapX

20230224 EFVault

20230222 DYNA

20230218 RevertFinance

20230217 Starlink

20230217 Dexible

20230217 Platypusdefi

20230210 Sheep Token

20230210 dForce

20230207 CowSwap

20230207 FDP Token

20230203 Orion Protocol

20230203 Spherax USDs

20230202 BonqDAO

20230126 TomInu Token

20230119 ThoreumFinance

20230118 QTN Token

20230118 UPS Token

20230117 OmniEstate

20230116 MidasCapital

20230112 UFDao

20230112 ROE

20230110 BRA

20230103 GDS

2022

20221230 DFS

20221229 JAY

20221225 Rubic

20221223 Defrost

20221214 Nmbplatform

20221213 ElasticSwap

20221212 BGLD

20221211 Lodestar

20221210 MUMUG

20221210 TIFIToken

20221209 NOVAToken

20221207 AES

20221205 RFB

20221205 BBOX

20221202 OverNight

20221201 APC

20221129 MBC

20221129 SEAMAN

20221123 NUM

20221122 AUR

20221121 SDAO

20221119 AnnexFinance

20221117 UEarnPool

20221116 SheepFarm

20221110 DFXFinance

20221109 brahTOPG

20221108 MEV_0ad8

20221108 Kashi

20221107 MooCAKECTX

20221105 BDEX

20221027 VTF

20221027 Team Finance

20221026 N00d Token

20221026 ULME

20221024 Market

20221024 MulticallWithoutCheck

20221021 OlympusDAO

20221020 HEALTH Token

20221020 BEGO Token

20221018 HPAY

20221018 PLTD Token

20221017 Uerii Token

20221014 INUKO Token

20221014 EFLeverVault

20221014 MEVBOT a47b

20221012 ATK

20221011 Rabby Wallet SwapRouter

20221011 Templedao

20221010 Carrot

20221009 Xave Finance

20221006 RES-Token

20221002 Transit Swap

20221001 BabySwap

20221001 RL

20221001 Thunder Brawl

20220929 BXH

20220928 MEVBOT Badc0de

20220923 RADT-DAO

20220913 MevBot Private TX

20220910 DPC

20220909 YYDS

20220908 NewFreeDAO

20220908 Ragnarok Online Invasion

20220906 NXUSD

20220905 ZoomproFinance

20220902 ShadowFi

20220902 Bad Guys by RPF

20220824 LuckyTiger NFT

20220810 XSTABLE Protocol

20220809 ANCH

20220807 EGD Finance

20220802 Nomad Bridge

20220801 Reaper Farm

20220725 LPC

20220713 Audius

20220713 SpaceGodzilla

20220710 Omni NFT

20220706 FlippazOne NFT

20220701 Quixotic - Optimism NFT Marketplace

20220626 XCarnival

20220624 Harmony's Horizon Bridge

20220618 SNOOD

20220616 InverseFinance

20220608 GYMNetwork

20220608 Optimism - Wintermute

20220606 Discover

20220529 NOVO Protocol

20220524 HackDao

20220517 ApeCoin

20220508 Fortress Loans

20220430 Saddle Finance

20220430 Rari Capital/Fei Protocol

20220428 DEUS DAO

20220424 Wiener DOGE

20220423 Akutar NFT

20220421 Zeed Finance

20220416 BeanstalkFarms

20220415 Rikkei Finance

20220412 ElephantMoney

20220411 Creat Future

20220409 GYMNetwork

20220329 Ronin Network

20220329 Redacted Cartel

20220328 SafeMoon Hack

20220327 Revest Finance

20220326 Auctus

20220322 CompoundTUSDSweepTokenBypass

20220321 OneRing Finance

20220320 LI.FI

20220320 Umbrella Network

20220315 Hundred Finance

20220313 Paraluni

20220309 Fantasm Finance

20220305 Bacon Protocol

20220303 TreasureDAO

20220214 BuildFinance - DAO

20220208 Sandbox LAND

20220206 Meter

20220128 Qubit Finance

20220118 Multichain (Anyswap)

2021

20211221 Visor Finance

20211218 Grim Finance

20211130 MonoX Finance

20211027 Cream Finance

20211015 Indexed Finance

20210916 SushiSwap Miso

20210915 Nimbus Platform

20210915 NowSwap Platform

20210912 ZABU Finance

20210903 DAO Maker

20210830 Cream Finance

20210817 XSURGE

20210811 Poly Network

20210804 WaultFinance

20210728 Levyathan Finance

20210710 Chainswap

20210702 Chainswap

20210628 SafeDollar

20210622 Eleven Finance

20210607 88mph NFT

20210603 PancakeHunny

20210527 BurgerSwap

20210519 PancakeBunny

20210125 Sushi Badger Digg

Before 2020

20210508 Rari Capital

20210508 Value Defi

20210428 Uranium

20210308 DODO

20210305 Paid Network

20201229 Cover Protocol

20201121 Pickle Finance

20201026 Harvest Finance

20200804 Opyn Protocol

20200618 Bancor Protocol

20180422 Beauty Chain

20171106 Parity - 'Accidentally Killed It'

Transaction debugging tools

Phalcon | Tx tracer | Cruise | Ethtx | Tenderly | eigenphi

Ethereum Signature Database

4byte | sig db | etherface

Useful tools

ABI to interface | Get ABI for unverified contracts | ETH Calldata Decoder | ETHCMD - Guess ABI | Abi tools

Hacks Dashboard

Slowmist | Defillama | Defiyield | Rekt | Cryptosec

List of DeFi Hacks & POCs

List of DeFi Hacks & POCs

20230424 Axioma - Business Logic Flaw

Lost: ~21 WBNB

Testing

forge test --contracts ./src/test/Axioma_exp.sol -vvv

Contract

Axioma_exp.sol

Link Reference

https://twitter.com/HypernativeLabs/status/1650382589847302145

20230419 OLIFE - Reflection token

Lost: ~32 WBNB

Testing

forge test --contracts ./src/test/OLIFE_exp.sol -vvv

Contract

OLIFE_exp.sol

Link Reference

https://twitter.com/BeosinAlert/status/1648520494516420608

20230416 Swapos V2 - error k value Attack

Lost: ~$468k

Testing

forge test --contracts ./src/test/Swapos_exp.sol -vvv

Contract

Swapos_exp.sol

Link Reference

https://twitter.com/CertiKAlert/status/1647530789947469825

https://twitter.com/BeosinAlert/status/1647552192243728385

20230415 HundredFinance - FlashLoan ExchangeRate Manipulation & ERC4626 Inflation Attack

Lost: $7M

Testing

forge test --contracts ./src/test/HundredFinance_2_exp.sol -vvv

Contract

HundredFinance_2_exp.sol

Link Reference

https://twitter.com/peckshield/status/1647307128267476992

https://twitter.com/danielvf/status/1647329491788677121

https://twitter.com/hexagate_/status/1647334970258608131

20230413 yearnFinance - Misconfiguration

Lost: $11.6M

Testing

forge test --contracts ./src/test/YearnFinance_exp.sol -vvv

Contract

YearnFinance_exp.sol

Link Reference

https://twitter.com/cmichelio/status/1646422861219807233

https://twitter.com/BeosinAlert/status/1646481687445114881

20230412 MetaPoint - Unrestricted Approval

Lost: $820k(2500BNB)

Testing

forge test --contracts ./src/test/MetaPoint_exp.sol -vvv

Contract

MetaPoint_exp.sol

Link Reference

https://twitter.com/PeckShieldAlert/status/1645980197987192833

https://twitter.com/Phalcon_xyz/status/1645963327502204929

20230411 Paribus - Reentrancy

Lost: $100k

Testing

forge test --contracts ./src/test/Paribus_exp.sol -vvv

Contract

Paribus_exp.sol

Link Reference

https://twitter.com/Phalcon_xyz/status/1645742620897955842

https://twitter.com/BlockSecTeam/status/1645744655357575170

https://twitter.com/peckshield/status/1645742296904929280

20230409 SushiSwap - Unchecked User Input

Lost: >$3.3M

Testing

forge test --contracts ./src/test/Sushi_Router_exp.sol -vvv

Contract

Sushi_Router_exp.sol

Link Reference

https://twitter.com/peckshield/status/1644907207530774530

https://twitter.com/SlowMist_Team/status/1644936375924584449

https://twitter.com/AnciliaInc/status/1644925421006520320

20230405 Sentiment - Read-Only-Reentrancy

Lost: $1M

Testing

forge test --contracts ./src/test/Sentiment_exp.sol -vvv

Contract

Sentiment_exp.sol

Link Reference

https://twitter.com/peckshield/status/1643417467879059456

https://twitter.com/spreekaway/status/1643313471180644360

https://medium.com/coinmonks/theoretical-practical-balancer-and-read-only-reentrancy-part-1-d6a21792066c

20230402 Allbridge - FlashLoan price manipulation

Lost: $550k

Testing

forge test --contracts ./src/test/Allbridge_exp.sol -vvv

Contract

Allbrideg_exp.sol | Allbrideg_exp2.sol

Link Reference

https://twitter.com/peckshield/status/1642356701100916736

https://twitter.com/BeosinAlert/status/1642372700726505473

20230328 SafeMoon Hack

Lost: $8.9M

Testing

forge test --contracts ./src/test/safeMoon_exp.sol -vvv

Contract

safeMoon_exp.sol

Link reference

https://twitter.com/zokyo_io/status/1641014520041840640

20230328 - Thena - Yield Protocol Flaw

Lost: $10k

Testing

forge test --contracts ./src/test/Thena_exp.sol -vvv

Contract

Thena_exp.sol

Link Reference

https://twitter.com/LTV888/status/1640563457094451214?t=OBHfonYm9yYKvMros6Uw_g&s=19

20230325 - DBW- Business Logic Flaw

Lost: $24k

Testing

forge test --contracts ./src/test/DBW_exp.sol -vvv

Contract

DBW_exp.sol

Link Reference

https://twitter.com/BeosinAlert/status/1639655134232969216

https://twitter.com/AnciliaInc/status/1639289686937210880

20230322 - BIGFI - Reflection token

Lost: $30k

Testing

forge test --contracts ./src/test/BIGFI_exp.sol -vvv

Contract

BIGFI_exp.sol

Link Reference

https://twitter.com/HypernativeLabs/status/1638522680654675970

20230317 - ParaSpace NFT - Flashloan + scaledBalanceOf Manipulation

Rescued: ~2,909 ETH

Testing

forge test --contracts ./src/test/paraspace_exp.sol -vvv

Contract

paraspace_exp.sol

Paraspace_exp_2.sol

Link Reference

https://twitter.com/BlockSecTeam/status/1636650252844294144

20230315 - Poolz - integer overflow

Lost: ~$390K

Testing

forge test --contracts ./src/test/poolz_exp.sol -vvv

Contract

poolz_exp.sol

Link Reference

https://twitter.com/peckshield/status/1635860470359015425

20230313 - EulerFinance - Business Logic Flaw

Lost: ~$200M

Testing

forge test --contracts ./src/test/Euler_exp.sol -vvv

Contract

Euler_exp.sol

Link Reference

https://twitter.com/FrankResearcher/status/1635241475989721089

https://twitter.com/nomorebear/status/1635230621856600064

https://twitter.com/peckshield/status/1635229594596036608

https://twitter.com/BlockSecTeam/status/1635262150624305153

20230308 - DKP - FlashLoan price manipulation

Lost: ~$80K

Testing

forge test --contracts ./src/test/DKP_exp.sol -vvv

Contract

DKP_exp.sol

Link Reference

https://twitter.com/CertiKAlert/status/1633421908996763648

20230307 - Phoenix - Access Control & Arbitrary External Call

Lost: ~$100k

Testing

forge test --contracts src/test/Phoenix_exp.sol -vvv

Contract

Phoenix_exp.sol

Link Reference

https://twitter.com/HypernativeLabs/status/1633090456157401088

20230227 - LaunchZone - Access Control

Lost: ~$320,000

Testing

forge test  --contracts src/test/LaunchZone_exp.sol -vvv

Contract

LuanchZone_exp.sol

Link Reference

https://twitter.com/immunefi/status/1630210901360951296

https://twitter.com/launchzoneann/status/1631538253424918528

20230227 - swapX - Access Control

Lost: ~$1M

Testing

forge test --contracts ./src/test/swapX_exp.sol -vvv

Contract

SwapX_exp.sol

Link Reference

https://twitter.com/BlockSecTeam/status/1630111965942018049

https://twitter.com/peckshield/status/1630100506319413250

https://twitter.com/CertiKAlert/status/1630241903839985666

20230224 - EFVault - Storage Collision

Lost: ~$5.1M

Testing

forge test --contracts ./src/test/EFVault_exp.sol -vvv

Contract

EFVault_exp.sol

Link Reference

https://twitter.com/peckshield/status/1630490333716029440

https://twitter.com/drdr_zz/status/1630500170373685248

https://twitter.com/gbaleeeee/status/1630587522698080257

20230222 - DYNA - Business Logic Flaw

Lost: ~$21k

Testing

forge test --contracts ./src/test/DYNA_exp.sol -vvv

Contract

DYNA_exp.sol

Link Reference

https://twitter.com/BlockSecTeam/status/1628319536117153794

https://twitter.com/BeosinAlert/status/1628301635834486784

20230218 - RevertFinance - Arbitrary External Call Vulnerability

Lost: ~$30k

Testing

forge test --contracts ./src/test/RevertFinance_exp.sol -vvv

Contract

RevertFinance_exp.sol

Link Reference

https://mirror.xyz/revertfinance.eth/3sdpQ3v9vEKiOjaHXUi3TdEfhleAXXlAEWeODrRHJtU

20230217 - Starlink - Business Logic Flaw

Lost: ~$12k

Testing

forge test --contracts ./src/test/Starlink_exp.sol -vvv

Contract

Starlink_exp.sol

Link Reference

https://twitter.com/NumenAlert/status/1626447469361102850

https://twitter.com/bbbb/status/1626392605264351235

20230217 - Dexible - Arbitrary External Call Vulnerability

Lost: ~$1.5M

Testing

forge test --contracts src/test/Dexible_exp.sol -vvv

Contract

Dexible_exp.sol

Link Reference

https://twitter.com/peckshield/status/1626493024879673344

https://twitter.com/MevRefund/status/1626450002254958592

20230217 - Platypusdefi - Business Logic Flaw

Lost: ~$8.5M

Testing

forge test --contracts src/test/Platypus_exp.sol -vvv

Contract

Platypus_exp.sol

Link Reference

https://twitter.com/peckshield/status/1626367531480125440

https://twitter.com/spreekaway/status/1626319585040338953

20230210 - Sheep - Reflection token

Lost: ~$3K

Testing

forge test --contracts src/test/Sheep_exp.sol -vvv

Contract

Sheep_exp.sol

Link Reference

https://twitter.com/BlockSecTeam/status/1623999717482045440

https://twitter.com/BlockSecTeam/status/1624077078852210691

20230210 - dForce - Read-Only-Reentrancy

Lost: ~$3.65M

Testing

forge test --contracts ./src/test/dForce_exp.sol -vvv

Contract

dForce_exp.sol

Link reference

https://twitter.com/SlowMist_Team/status/1623956763598000129

https://twitter.com/BlockSecTeam/status/1623901011680333824

https://twitter.com/peckshield/status/1623910257033617408

20230207 - CowSwap - Arbitrary External Call Vulnerability

Lost: ~$120k

Testing

forge test --contracts ./src/test/CowSwap_exp.sol -vvv

Contract

CowSwap_exp.sol

Link reference

https://twitter.com/MevRefund/status/1622793836291407873

https://twitter.com/peckshield/status/1622801412727148544

20230207 - FDP - Reflection token

Lost: ~16 WBNB

Testing

forge test --contracts src/test/FDP_exp.t.sol -vv

Contract

FDP_exp.t.sol

Link reference

https://twitter.com/BeosinAlert/status/1622806011269771266

20230203 - Spherax USDs - Balance Recalculation Bug

Lost: ~309k USDs (Stablecoin)

Testing

forge test --contracts ./src/test/USDs_exp.sol -vv

Contract

USDs_exp.sol

Link reference

https://twitter.com/danielvf/status/1621965412832350208

https://medium.com/sperax/usds-feb-3-exploit-report-from-engineering-team-9f0fd3cef00c

20230203 - Orion Protocol - Reentrancy

Lost: $3M

Testing

forge test --contracts ./src/test/Orion_exp.sol -vvv

Contract

Orion_exp.sol

Link reference

https://twitter.com/peckshield/status/1621337925228306433

https://twitter.com/BlockSecTeam/status/1621263393054420992

https://www.numencyber.com/analysis-of-orionprotocol-reentrancy-attack-with-poc/

20230202 - BonqDAO - Price Oracle Manipulation

Lost: BEUR stablecoin and ALBT Token (~88M US$)

Testing

forge test --contracts ./src/test/BonqDAO_exp.sol -vv

Contract

BonqDAO_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1621043757390123008

https://twitter.com/SlowMist_Team/status/1621087651158966274

20230126 - TINU - Reflection token

Lost: 22 ETH

Testing

forge test --contracts ./src/test/TINU_exp.t.sol -vv

Contract

TINU_exp.t.sol

Link reference

https://twitter.com/libevm/status/1618718156343873536

20230118 - QTNToken - business logic flaw

Lost: ~2ETH

Testing

forge test --contracts ./src/test/QTN_exp.sol -vvv

Contract

QTN_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1615625901739511809

20230119 - ThoreumFinance-business logic flaw

Lost: ~2000 BNB

Testing

forge test --contracts ./src/test/ThoreumFinance_exp.sol -vvv

Contract

ThoreumFinance_exp.sol

Link reference

https://bscscan.com/tx/0x3fe3a1883f0ae263a260f7d3e9b462468f4f83c2c88bb89d1dee5d7d24262b51 https://twitter.com/AnciliaInc/status/1615944396134043648

20230118 - UPSToken - business logic flaw

Lost: ~22 ETH

Testing

forge test --contracts ./src/test/Upswing_exp.sol -vvv

Contract

Upswing_exp.sol

Link reference

https://etherscan.io/tx/0x4b3df6e9c68ae482c71a02832f7f599ff58ff877ec05fed0abd95b31d2d7d912 https://twitter.com/QuillAudits/status/1615634917802807297

20230117 - OmniEstate - No Input Parameter Check

Lost: $70k(236 BNB)

Testing

forge test --contracts ./src/test/OmniEstate_exp.sol -vvv

Contract

OmniEstate_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1615232012834705408

20230116 - MidasCapital - Read-only Reentrancy

Lost: $650k

Testing

forge test --contracts ./src/test/Midas_exp.sol -vvv

Contract

Midas_exp.sol

Link reference

https://twitter.com/peckshield/status/1614774855999844352

https://twitter.com/BlockSecTeam/status/1614864084956254209

20230112 - UFDao - Incorrect Parameter Setting

Lost: $90k

Testing

forge test --contracts ./src/test/UFDao_exp.sol -vvv

Contract

UFDao_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1613507804412940289

20230112 - RoeFinance - FlashLoan price manipulation

Lost: $80k

Testing

forge test --contracts ./src/test/RoeFinance_exp.sol -vvv

Contract

RoeFinance_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1613267000913960976

20230110 - BRA - Business Logic Flaw

Lost: 819 BNB (~224k$)

Testing

forge test --contracts ./src/test/BRA.exp.sol -vvv

Contract

BRA.exp.sol

Link reference

https://twitter.com/CertiKAlert/status/1612674916070858753

https://twitter.com/BlockSecTeam/status/1612701106982862849

20230103 - GDS - Business Logic Flaw

Lost: $180k

Testing

forge test --contracts ./src/test/GDS_exp.sol -vvv

Contract

GDS_exp.sol

Link reference

https://twitter.com/peckshield/status/1610095490368180224

https://twitter.com/BlockSecTeam/status/1610167174978760704

2022

20221230 - DFS - Insufficient validation + flashloan

Lost: $1450

Testing

forge test --contracts ./src/test/DFS_exp.sol -vvv

Contract

DFS_exp.sol

Link reference

https://twitter.com/CertiKAlert/status/1608788290785665024

20221229 - JAY - Insufficient validation + Reentrancy

Lost: $15.32 ETH

Testing

forge test --contracts ./src/test/JAY_exp.sol -vvv

Contract

JAY_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1608372475225866240

20221225 - Rubic - Arbitrary External Call Vulnerability

Lost: $1.5M

Testing

forge test --contracts ./src/test/Rubic_exp.sol -vvv

Contract

Rubic_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1606993118901198849

https://twitter.com/peckshield/status/1606937055761952770

20221223 - Defrost - Reentrancy

Lost: $170k

Testing

forge test --contracts ./src/test/Defrost_exp.sol -vvv

Contract

Defrost_exp.sol

Link reference

https://twitter.com/PeckShieldAlert/status/1606276020276891650

20221214 - Nmbplatform - FlashLoan price manipulation

Lost: 76k

Testing

forge test --contracts ./src/test/Nmbplatform_exp.sol -vvv

Contract

Nmbplatform_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1602877048124735489

20221213 - ElasticSwap - Business Logic Flaw

Lost: $845k

Testing

forge test --contracts ./src/test/ElasticSwap_exp.sol -vvv

Contract

ElasticSwap_exp.sol

Link reference

https://quillaudits.medium.com/decoding-elastic-swaps-850k-exploit-quillaudits-9ceb7fcd8d1a

20221212 - BGLD (Deflationary token) - FlashLoan price manipulation

Lost: $18k

Testing

forge test --contracts ./src/test/BGLD_exp.sol -vvv

Contract

BGLD_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1602335214356660225

20221211 - Lodestar - FlashLoan price manipulation

Lost: $4M

Testing

forge test --contracts ./src/test/Lodestar_exp.sol -vvv

Contract

Lodestar_exp.sol

Link reference

https://twitter.com/SolidityFinance/status/1601684150456438784

https://blog.lodestarfinance.io/post-mortem-summary-13f5fe0bb336

20221210 - MU&MUG - FlashLoan price manipulation

Lost: $57k

Testing

forge test --contracts ./src/test/MUMUG_exp.sol -vvv

Contract

MUMUG_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1601422462012469248

20221210 - TIFIToken - FlashLoan price manipulation

Lost: 87 WBNB

Testing

forge test --contracts ./src/test/TIFI_exp.sol -vvv

Contract

TIFI_exp.sol

Link reference

https://twitter.com/peckshield/status/1601492605535399936

20221209 - NOVAToken - Malicious Unlimted Minting (Rugged)

Lost: 330 $BNB

Testing

forge test --contracts ./src/test/NovaExchange_exp.sol -vvv

Contract

NovaExchange_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1601168659585454081

20221207 - AES (Deflationary token) - Business Logic Flaw & FlashLoan price manipulation

Lost: $60k

Testing

forge test --contracts ./src/test/AES_exp.sol -vvv

Contract

AES_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1600442137811689473

https://twitter.com/peckshield/status/1600418002163625984

20221205 - RFB - Predicting Random Numbers

Lost: 12BNB

Testing

forge test --contracts ./src/test/RFB_exp.sol -vvv

Contract

RFB_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1599991294947778560

20221205 - BBOX - FlashLoan price manipulation

Lost: 12k

Testing

forge test --contracts ./src/test/BBOX_exp.sol -vvv

Contract

BBOX_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1599599614490877952

20221202 - OverNight - FlashLoan Attack

Lost: 170k

Testing

forge test --contracts ./src/test/Overnight_exp.sol -vvv

Contract

Overnight_exp.sol

Link reference

https://twitter.com/peckshield/status/1598704809690877952

20221201 - APC - FlashLoan & price manipulation

Lost: $6k

Testing

forge test --contracts ./src/test/APC_exp.sol -vvv

Contract

APC_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1598262002010378241

20221129 - MBC - Business Logic Flaw & Access Control

Lost $5.6k

Testing

forge test --contracts ./src/test/MBC_exp.sol -vvv

Contract

MBC_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1597742575623888896

https://twitter.com/CertiKAlert/status/1597639717096460288

20221129 - SEAMAN - Business Logic Flaw

Lost $7k

Testing

forge test --contracts ./src/test/SEAMAN_exp.sol -vvv

Contract

SEAMAN_exp.sol

Link reference

https://twitter.com/peckshield/status/1597493955939405825

https://twitter.com/CertiKAlert/status/1597513374841044993

https://twitter.com/BeosinAlert/status/1597535796621631489

20221123 - NUM - Protocol Token incompatible

Lost $13k

Testing

forge test --contracts ./src/test/NUM_exp.sol -vvv

Contract

NUM_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1595346020237352960

20221122 - AUR - Lack of Permission Check

Lost: $13k

Testing

forge test --contracts ./src/test/AUR_exp.sol -vvv

Contract

AUR_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1595142246570958848

20221121 - sDAO - Business Logic Flaw

Lost: $13k

Testing

forge test --contracts ./src/test/SDAO_exp.sol -vvv

Contract

SDAO_exp.sol

Link reference

https://twitter.com/8olidity/status/1594693686398316544

https://twitter.com/CertiKAlert/status/1594615286556393478

20221119 - AnnexFinance - Verify flashLoan Callback

Lost: $3k

Testing

forge test --contracts ./src/test/Annex_exp.sol -vvv

Contract

Annex_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1593690338526273536

20221117 - UEarnPool - FlashLoan Attack

Lost: $24k

Testing

forge test --contracts ./src/test/UEarnPool_exp.sol -vvv

Contract

UEranPool_exp.sol

Link reference

https://twitter.com/CertiKAlert/status/1593094922160128000

20221116 - SheepFarm - No input validation

Lost: ~1BNB

Testing

forge test --contracts ./src/test/SheepFram_exp.sol -vvv

Contract

SheepFarm_exp.sol | SheepFarm2_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1592658104394473472

https://twitter.com/BlockSecTeam/status/1592734292727455744

20221110 - DFXFinance - Reentrancy

Lost: $4M

Testing

forge test --contracts ./src/test/DFX_exp.sol -vvv

Contract

DFX_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1590960299246780417

https://twitter.com/BeosinAlert/status/1591012525914861570

https://twitter.com/AnciliaInc/status/1590839104731684865

https://twitter.com/peckshield/status/1590831589004816384

20221109 BrahTOPG - Arbitrary External Call Vulnerability

Lost: $89k

Testing

 forge test --contracts ./src/test/BrahTOPG_exp.sol -vvv

Contract

BrahTOPG_exp.sol

Link reference

https://twitter.com/SlowMist_Team/status/1590685173477101570

20221108 MEV_0ad8 - Arbitrary call

Lost: $282k

Testing

forge test --contracts src/test/MEV_0ad8.t.sol -vvvv

Contract

MEV_0ad8.t.sol

Link reference

https://twitter.com/Supremacy_CA/status/1590337718755954690

20221108 Kashi - Price-caching Design Defect

Lost: $110k

Testing

forge test --contracts ./src/test/Kashi_exp.sol -vvv

Contract

Kashi_exp.sol

Link reference

https://eigenphi.substack.com/p/casting-a-magic-spell-on-abracadabra

https://twitter.com/BlockSecTeam/status/1603633067876155393

20221107 MooCAKECTX - FlashLoan Attack

Lost: $140k

Testing

forge test --contracts ./src/test/MooCAKECTX_exp.sol -vvv

Contract

MooCAKECTX_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1589501207181393920

https://twitter.com/CertiKAlert/status/1589428153591615488

20221105 BDEX - Business Logic Flaw

Lost: 16WBNB

Testing

forge test --contracts ./src/test/BDEX_exp.sol -vvv

Contract

BDEX_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1588579143830343683

20221027 VTF Token - Incorrect Reward calculation

Lost: $50k

Testing

forge test --contracts ./src/test/VTF_exp.sol -vvv

Contract

VTF_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1585575129936977920

https://twitter.com/peckshield/status/1585572694241988609

https://twitter.com/BeosinAlert/status/1585587030981218305

20221027 Team Finance - Liquidity Migration Exploit

Lost: Multiple Tokens ~$15.8M US$

Testing

forge test --contracts ./src/test/TeamFinance.exp.sol -vvv

Contract

TeamFinance.exp.sol

Link reference

https://twitter.com/TeamFinance_/status/1585770918873542656

https://twitter.com/peckshield/status/1585587858978623491

https://twitter.com/solid_group_1/status/1585643249305518083

https://twitter.com/BeosinAlert/status/1585578499125178369

20221026 N00d Token - Reentrancy

Lost $29k

Testing

forge test --contracts src/test/N00d_exp.sol -vvv

Contract

N00d_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1584959295829180416

https://twitter.com/AnciliaInc/status/1584955717877784576

20221026 ULME - Access Control

Lost ~200k US$ which resulted in ~50k profit

Testing

forge test --contracts ./src/test/ULME.sol -vvv

Contract

ULME.sol

Link reference

https://twitter.com/BlockSecTeam/status/1584839309781135361 https://twitter.com/BeosinAlert/status/1584888021299916801

20221024 Market - Read-only Reentrancy

Lost: $220k

Testing

forge test --contracts ./src/test/Market_exp.t.sol -vv

Contract

Market_exp.t.sol

Link reference

https://quillaudits.medium.com/decoding-220k-read-only-reentrancy-exploit-quillaudits-30871d728ad5

20221024 MulticallWithoutCheck - Arbitrary External Call Vulnerability

Lost $600

Testing

forge test --contracts ./src/test/MulticallWithoutCheck_exp.sol -vvv

Contract

MulticallWithoutCheck_exp.sol

20221021 OlympusDAO - No input validation

Lost ~$292K (30500 OHM)

Testing

forge test --contracts ./src/test/OlympusDao.exp.sol -vvv

Contract

OlympusDao.exp.sol

Link reference

https://twitter.com/peckshield/status/1583416829237526528

20221020 HEALTH - Transfer Logic Flaw

Lost 16 BNB

Testing

forge test --contracts ./src/test/HEALTH_exp.sol -vvv

Contract

HEALTH_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1583073442433495040

20221020 BEGO - Incorrect signature verification

Lost 12 BNB

Testing

forge test --contracts ./src/test/BEGO_exp.sol -vvv

Contract

BEGO_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1582828751250784256

https://twitter.com/peckshield/status/1582892058800685058

20221018 HPAY - Access Control

Lost: 115 BNB

Testing

forge test --contracts ./src/test/HPAY_exp.sol -vvv

Contract

HPAY_exp.sol

Link reference

https://twitter.com/Supremacy_CA/status/1582345448190140417

20221018 PLTD - Transfer Logic Flaw

Lost: $ 24k

Testing

forge test --contracts ./src/test/PLTD_exp.sol -vvv

Contract

PLTD_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1582181583343484928

20221017 Uerii Token - Access Control

Lost: $2.4 k

Testing

forge test --contracts ./src/test/Uerii_exp.sol -vvv

Contract

Uerii_exp.sol

Link reference

https://twitter.com/peckshield/status/1581988895142526976

20221014 INUKO - FlashLoan price manipulation

Lost: $50k

Testing

forge test --contracts ./src/test/INUKO_exp.sol -vvv

Contract

INUKO_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1587848874076430336

20221014 EFLeverVault - Verify flashLoan Callback

Lost: 750 ETH

Testing

 forge test --contracts ./src/test/EFLeverVault_exp.sol -vvv

Contract

EFLeverVault_exp.sol

Link reference

https://twitter.com/Supremacy_CA/status/1581012823701786624

https://twitter.com/MevRefund/status/1580917351217627136

https://twitter.com/danielvf/status/1580936010556661761

20221014 MEVBOTa47b - MEVBOT a47b

Lost: $241 k

Testing

forge test --contracts ./src/test/MEVa47b_exp.sol -vvv

Contract

MEVa47b_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1580779311862190080

https://twitter.com/AnciliaInc/status/1580705036400611328

https://etherscan.io/tx/0x35ecf595864400696853c53edf3e3d60096639b6071cadea6076c9c6ceb921c1

20221012 ATK - FlashLoan manipulate price

Lost: $127 k

Testing

forge test --contracts ./src/test/ATK_exp.sol -vvv

Contract

ATK_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1580095325200474112

20221011 Rabby Wallet SwapRouter - Arbitrary External Call Vulnerability

Lost: ~200,000 US$

Testing

forge test --contracts src/test/RabbyWallet_SwapRouter.exp.sol -vv

Contract

RabbyWallet_SwapRouter.exp.sol

Link reference

https://twitter.com/Supremacy_CA/status/1579813933669486592

https://twitter.com/SlowMist_Team/status/1579839744128978945

https://twitter.com/BeosinAlert/status/1579856733178331139

20221011 Templedao - Insufficient access control

Lost: $2.3 million

Testing

forge test --contracts src/test/Templedao_exp.sol -vv

Contract

Templedao_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1579843881893769222

https://etherscan.io/tx/0x8c3f442fc6d640a6ff3ea0b12be64f1d4609ea94edd2966f42c01cd9bdcf04b5

20221010 Carrot - Public functionCall

Testing

forge test --contracts src/test/Carrot_exp.sol -vv

Contract

Carrot_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1579908411235237888

https://bscscan.com/tx/0xa624660c29ee97f3f4ebd36232d8199e7c97533c9db711fa4027994aa11e01b9

20221009 Xave Finance - Malicious Proposal Mint & Transfer Ownership

Testing

forge test --contracts src/test/XaveFinance_exp.sol -vv

Contract

XaveFinance_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1579040051853303808

https://etherscan.io/tx/0xc18ec2eb7d41638d9982281e766945d0428aaeda6211b4ccb6626ea7cff31f4a

20221006 RES-Token - pair manipulate

Testing

forge test --contracts src/test/RES_exp.sol -vv

Contract

RES_exp.sol RES02_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1578119778446680064

https://bscscan.com/tx/0xe59fa48212c4ee716c03e648e04f0ca390f4a4fc921a890fded0e01afa4ba96d

20221002 Transit Swap - Incorrect owner address validation

Testing

forge test --contracts src/test/TransitSwap_exp.sol -vv

Contract

TransitSwap_exp.sol

Link reference

https://twitter.com/TransitFinance/status/1576463550557483008

https://twitter.com/1nf0s3cpt/status/1576511552592543745

https://bscscan.com/tx/0x181a7882aac0eab1036eedba25bc95a16e10f61b5df2e99d240a16c334b9b189

20221001 BabySwap - Parameter Access Control

Testing

forge test --contracts ./src/test/BabySwap_exp.sol -vvv

Contract

BabySwap_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1576441612812836865

20221001 RL Token - Incorrect Reward calculation

Testing

forge test --contracts src/test/RL_exp.sol -vv

Contract

RL_exp.sol

Link reference

https://twitter.com/CertiKAlert/status/1576195971003858944

20221001 Thunder Brawl - Reentrancy

Testing

forge test --contracts src/test/THB_exp.sol -vv

Contract

THB_exp.sol

Link reference

https://twitter.com/peckshield/status/1575890733373849601

https://bscscan.com/tx/0x57aa9c85e03eb25ac5d94f15f22b3ba3ab2ef60b603b97ae76f855072ea9e3a0

20220928 BXH - Flashloan & Price Oracle Manipulation

Lost: $40,305

Testing

forge test --contracts src/test/BXH_exp.sol -vv

Contract

BXH_exp.sol

Link reference

https://www.jinse.com/lives/319392.html

https://bscscan.com/tx/0xa13c8c7a0c97093dba3096c88044273c29cebeee109e23622cd412dcca8f50f4

20220910 DPC - Incorrect Reward calculation

Lost: $103,755

Testing

forge test --contracts ./src/test/DPC_exp.sol -vvv

Contract

DPC_exp.sol

Link reference

https://twitter.com/BeosinAlert/status/1568429355919089664

https://bscscan.com/address/0x2109bbecB0a563e204985524Dd3DB2F6254AB419

https://learnblockchain.cn/article/4733

20220928 MEVBOT - Badc0de

Lost: $1,469,700

An anonymous attacker noticed a flaw in the bots arbitrage contract code, and stole not only the recently acquired 800 ETH, but the entire 1,101 ETH in 0xbad’s wallet.

Testing

forge test --contracts ./src/test/MEVbadc0de_exp.sol -vvv

Contract

MEVbadc0de_exp.sol

Link reference

https://rekt.news/ripmevbot/

https://etherscan.io/tx/0x59ddcf5ee5c687af2cbf291c3ac63bf28316a8ecbb621d9f62d07fa8a5b8ef4e

20220923 RADT-DAO - pair manipulate

Lost: 94,304 USDT

Testing

forge test --contracts ./src/test/RADT_exp.sol -vvv

Contract

RADT_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1573252869322846209

https://bscscan.com/tx/0xd692f71de2768017390395db815d34033013136c378177c05d0d46ef3b6f0897

20220913 MevBot private tx

Lost: $140 K

Testing

forge test --contracts ./src/test/BNB48MEVBot_exp.sol -vvv

Contract

BNB48MEVBot_exp.sol

Link reference

https://blocksecteam.medium.com/the-two-sides-of-the-private-tx-service-on-binance-smart-chain-a76917c3ce51

https://twitter.com/1nf0s3cpt/status/1577594615104172033

https://bscscan.com/tx/0xd48758ef48d113b78a09f7b8c7cd663ad79e9965852e872fdfc92234c3e598d2

20220909 YYDS - pair manipulate

Lost: 742,286.27 BUSD

Testing

forge test --contracts ./src/test/Yyds_exp.sol -vvv

Contract

Yyds_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1567928377432051713

https://bscscan.com/tx/0x04a1f0d1694242515ecb14faa71053901f11a1286cd21c27fe5542f9eeb62356

20220908 Ragnarok Online Invasion - Broken Access Control

Lost: 157.98 BNB (~44,000 US$)

Testing

forge test --contracts ./src/test/ROI_exp.sol -vvv

Contract

ROI_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1567746825616236544

https://twitter.com/CertiKAlert/status/1567754904663429123

https://www.panewslab.com/zh_hk/articledetails/mbzalpdi.html

https://medium.com/quillhash/decoding-ragnarok-online-invasion-44k-exploit-quillaudits-261b7e23b55

20220908 NewFreeDAO - Flashloans Attack

Lost: 1M US$

Testing

forge test --contracts ./src/test/NewFreeDAO_exp.sol -vvv

Contract

NewFreeDAO_exp.sol

Link reference

https://twitter.com/SlowMist_Team/status/1567854876633309186

https://bscscan.com/tx/0x1fea385acf7ff046d928d4041db017e1d7ead66727ce7aacb3296b9d485d4a26

20220906 NXUSD - flashloan price oracle manipulation

Lost 50,000 USD

Testing

forge test --contracts ./src/test/NXUSD_exp.sol -vvv

Contract

NXUSD_exp.sol

Link reference

https://medium.com/nereus-protocol/post-mortem-flash-loan-exploit-in-single-nxusd-market-343fa32f0c6

https://snowtrace.io/tx/0x0ab12913f9232b27b0664cd2d50e482ad6aa896aeb811b53081712f42d54c026

20220905 ZoomproFinance - Flashloans & Price Manipulation

Lost: 61,160 USDT

Testing

forge test --contracts ./src/test/ZoomproFinance_exp.sol -vvv

Contract

ZoomproFinance_exp.sol

Link reference

https://twitter.com/blocksecteam/status/1567027459207606273

https://bscscan.com/tx/0xe176bd9cfefd40dc03508e91d856bd1fe72ffc1e9260cd63502db68962b4de1a

20220902 ShadowFi - Access Control

Lost: 1,078 BNB

Anyone can burn $SDF

Testing

forge test --contracts ./src/test/Shadowfi_exp.sol -vvv

Contract

Shadowfi_exp.sol

Link reference

https://twitter.com/PeckShieldAlert/status/1565549688509861888

https://bscscan.com/tx/0xe30dc75253eecec3377e03c532aa41bae1c26909bc8618f21fb83d4330a01018

20220902 Bad Guys by RPF - Business Logic Flaw : Missing Check For Number of NFT to Mint

Lost: Bad Guys by RPF(400 NFTs)

Testing

forge test --contracts ./src/test/BadGuysbyRPF_exp.sol -vvv

Contract

BadGuysbyRPF_exp.sol

Link reference

https://twitter.com/RugDoctorApe/status/1565739119606890498

https://etherscan.io/tx/0x27e64a8215ae1528245c912bcca09883fdd7cce69249bd5d5d1c0eecf5297b96

20220824 LuckyTiger NFT - Predicting Random Numbers

Testing

forge test --contracts ./src/test/LuckyTiger_exp -vvv
forge script script/LuckyTiger_s_exp.sol:luckyHack --fork-url http://127.0.0.1:8545 --private-key $PRIVATE_KEY --broadcast

Contract

LuckyTiger_exp.sol | LuckyTiger_s_exp.sol

Link reference

https://twitter.com/1nf0s3cpt/status/1576117129589317633

https://etherscan.io/tx/0x804ff3801542bff435a5d733f4d8a93a535d73d0de0f843fd979756a7eab26af

20220810 XSTABLE Protocol - Incorrect Logic Check

Testing

forge test --contracts ./src/test/XST.exp.sol -vvv

Contract

XST.exp.sol XST02_exp.sol

Link reference

https://mobile.twitter.com/BlockSecTeam/status/1557195012042936320

20220809 ANCH - Skim token balance

Testing

forge test --contracts ./src/test/ANCH_exp.sol -vvv

Contract

ANCH_exp.sol

Link reference

https://twitter.com/AnciliaInc/status/1557527183966408706

20220807 EGD Finance - Flashloans & Price Manipulation

Lost: 36,044 USDT

Testing

forge test --contracts ./src/test/EGD-Finance.exp.sol -vvv

Contract

EGD-Finance.exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1556483435388350464

https://twitter.com/PeckShieldAlert/status/1556486817406283776

20220802 Nomad Bridge - Business Logic Flaw : Incorrect acceptable merkle-root checks

Lost: Multiple ERC-20 Tokens (~152M US$)

Testing

forge test --contracts ./src/test/NomadBridge.exp.sol -vvv

Contract

NomadBridge.exp.sol

Link reference

https://twitter.com/samczsun/status/1554252024723546112

https://www.certik.com/resources/blog/28fMavD63CpZJOKOjb9DX3-nomad-bridge-exploit-incident-analysis

https://blog.coinbase.com/nomad-bridge-incident-analysis-899b425b0f34

20220801 Reaper Farm - Business Logic Flaw : Lack of access control mechanism

Lost: Multiple ERC-20 Tokens (~1.7M US$)

Testing

forge test --contracts ./src/test/ReaperFarm.exp.sol -vvv

Contract

ReaperFarm.exp.sol

Link reference

https://twitter.com/Reaper_Farm/status/1554500909740302337

https://twitter.com/BeosinAlert/status/1554476940593340421

20220725 LPC - Business Logic Flaw : Incorrect recipient balance check, did not check sender!=recipient in transfer

Lost: 178 BNB (~45,715 US$)

Testing

forge test --contracts ./src/test/LPC.exp.sol -vvv

Contract

LPC.exp.sol

Link reference

https://www.panewslab.com/zh_hk/articledetails/uwv4sma2.html

https://twitter.com/BeosinAlert/status/1551535854681718784

20220723 Audius - Storage Collision & Malicious Proposal

Lost: 704 ETH (~1.08M US$)

Testing

forge test --contracts ./src/test/Audius.exp.sol -vvv

Contract

Audius.exp.sol

Link reference

https://twitter.com/AudiusProject/status/1551000725169180672

https://twitter.com/1nf0s3cpt/status/1551050841146400768

https://blog.audius.co/article/audius-governance-takeover-post-mortem-7-23-22

20220713 SpaceGodzilla - Flashloans & Price Manipulation

Lost: 25,378 BUSD

Testing

forge test --contracts ./src/test/SpaceGodzilla.exp.sol -vvv

Contract

SpaceGodzilla.exp.sol

Link reference

https://mobile.twitter.com/BlockSecTeam/status/1547456591900749824

https://medium.com/numen-cyber-labs/spacegodzilla-attack-event-analysis-d29a061b17e1

https://learnblockchain.cn/article/4396

https://learnblockchain.cn/article/4395 *** math behind such attack

20220710 Omni NFT - Reentrancy

Lost: $1.4M

Testing

forge test --contracts ./src/test/Omni_exp.sol -vv

Contract

Omni_exp.sol

Link reference

https://twitter.com/SlowMist_Team/status/1546379086792388609

https://etherscan.io/tx/0x05d65e0adddc5d9ccfe6cd65be4a7899ebcb6e5ec7a39787971bcc3d6ba73996

20220706 FlippazOne NFT - Access control

The ownerWithdrawAllTo() without onlyOwner can call it.

Testing

forge test --contracts ./src/test/FlippazOne.sol -vvvv

Contract

FlippazOne.sol

Link reference

https://twitter.com/bertcmiller/status/1544496577338826752

https://etherscan.io/tx/0x8bded20c1db5a1d5f595b15e682a95ce11d3c895d6031147fa49c4ffa5729a30

20220701 Quixotic - Optimism NFT Marketplace

Lost: $100K

fillSellOrder function only check seller signature.

ECDSA signature combined with v r s, if recoveredAddress == sellOrder.seller; sellorder execute.

Testing

forge test --contracts ./src/test/Quixotic_exp.sol -vv

Contract

Quixotic_exp.sol

Link reference

https://twitter.com/1nf0s3cpt/status/1542808565349777408

https://twitter.com/SlowMist_Team/status/1542795627603857409

https://optimistic.etherscan.io/tx/0x5dc519726e1236eb846271f6699e03cdd1a8fd593a2900c71cd2aabbdb7c92e6

20220626 XCarnival - Infinite Number of Loans

Lost: 3087 ETH (~$3.87M)

Testing

forge test --contracts ./src/test/XCarnival.exp.sol -vv

Contract

XCarnival.exp.sol

Link reference

https://twitter.com/XCarnival_Lab/status/1541226298399653888

https://twitter.com/peckshield/status/1541047171453034501

https://twitter.com/BlockSecTeam/status/1541070850505723905

20220624 Harmony's Horizon Bridge - Private key compromised

Lost: $100 million

Private key compromised case of Multisig wallet

Testing

forge test --contracts ./src/test/Harmony_multisig.sol -vvvv

Contract

Harmony_multisig.sol

Link reference

https://twitter.com/harmonyprotocol/status/1540110924400324608

https://twitter.com/0xIvo/status/1540165571681128448

https://twitter.com/1nf0s3cpt/status/1540139812715261952

20220618 SNOOD - Miscalculation on _spendAllowance

Lost: 104 ETH

On _spendAllowance function they use _getStandardAmount and should be _getReflectedAmount

Testing

forge test --contracts ./src/test/Snood_poc.t.sol -vv

Contract

Snood_poc.t.sol

Link reference

https://ethereum.stackexchange.com/questions/130472/attack-on-erc-777-smart-contract-and-uniswapv2pair-resulting-in-104-eth-liquidit

https://etherscan.io/tx/0x9a6227ef97d7ce75732645bd604ef128bb5dfbc1bfbe0966ad1cd2870d45a20e

https://ethtx.info/mainnet/0x9a6227ef97d7ce75732645bd604ef128bb5dfbc1bfbe0966ad1cd2870d45a20e/

20220616 InverseFinance - Flashloan & Price Oracle Manipulation

Lost: 53.2445 WBTC and 99,976.29 USDT

Testing

forge test --contracts ./src/test/InverseFinance_exp.sol -vv

Contract

InverseFinance_exp.sol

Link reference

https://twitter.com/peckshield/status/1537382891230883841

https://twitter.com/SlowMist_Team/status/1537602909512376321

https://blocksecteam.medium.com/price-oracle-manipulation-attack-on-inverse-finance-a5544218ea91

https://www.certik.com/resources/blog/6LbL57WA3iMNm8zd7q111R-inverse-finance-incident-analysis

https://etherscan.io/tx/0x958236266991bc3fe3b77feaacea120f172c0708ad01c7a715b255f218f9313c

20220608 GYMNetwork - Access control

Lost: $2.1 million

Testing

forge test --contracts ./src/test/Gym_2_exp.sol -vv

Contract

Gym_2_exp.sol

Link reference

https://twitter.com/peckshield/status/1534423219607719936

https://twitter.com/1nf0s3cpt/status/1534464698069884929

https://www.jinse.com/news/blockchain/1658455.html

20220608 Optimism - Wintermute - Signature replay

Lost: 20 million Optimism (OP) tokens returned 17 million of them

Testing

forge test --contracts ./src/test/Optimism_exp.sol -vv

Contract

Optimism_exp.sol

Link reference

https://inspexco.medium.com/how-20-million-op-was-stolen-from-the-multisig-wallet-not-yet-owned-by-wintermute-3f6c75db740a

https://optimistic.etherscan.io/tx/0x75a42f240d229518979199f56cd7c82e4fc1f1a20ad9a4864c635354b4a34261

https://optimistic.etherscan.io/tx/0x00a3da68f0f6a69cb067f09c3f7e741a01636cbc27a84c603b468f65271d415b

20220606 Discover - Flashloan & Price Oracle Manipulation

Lost: 49 BNB

Testing

forge test --contracts ./src/test/Discover_exp.sol -vv

Contract

Discover_exp.sol

Link reference

https://www.twitter.com/BeosinAlert/status/1533734518623899648

https://www.anquanke.com/post/id/274003

https://bscscan.com/tx/0x8a33a1f8c7af372a9c81ede9e442114f0aabb537e5c3a22c0fd7231c4820f1e9

https://bscscan.com/tx/0x1dd4989052f69cd388f4dfbeb1690a3f3a323ebb73df816e5ef2466dc98fa4a4

20220529 NOVO Protocol - Flashloan & Price Oracle Manipulation

Lost: 279 BNB

Testing

forge test --contracts ./src/test/Novo_exp.sol -vvv

Contract

Novo_exp.sol

Link reference

https://www.panewslab.com/zh_hk/articledetails/f40t9xb4.html

https://bscscan.com/tx/0xc346adf14e5082e6df5aeae650f3d7f606d7e08247c2b856510766b4dfcdc57f

https://bscscan.com/address/0xa0787daad6062349f63b7c228cbfd5d8a3db08f1#code

20220524 HackDao - Skim token balance

Testing

forge test --contracts ./src/test/HackDao_exp.sol -vvv

Contract

HackDao_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1529084919976034304

20220517 ApeCoin (APE) - Flashloan

Lost: $1.1 million

buys vault token -> redeems NFTs -> claims airdrop of 60k APE -> re-supply's the pool Testing

forge test --contracts ./src/test/Bayc_apecoin_exp.sol -vvv

Contract

Bayc_apecoin_exp.sol

Link reference

https://etherscan.io/tx/0xeb8c3bebed11e2e4fcd30cbfc2fb3c55c4ca166003c7f7d319e78eaab9747098

https://news.coincu.com/73892-the-flashloan-attack-on-the-ape-airdrop-to-claim-1-1-million-of-ape-tokens/

20220508 Fortress Loans - Malicious Proposal & Price Oracle Manipulation

Lost: 1,048.1 ETH + 400,000 DAI (~$3.00M)

Testing

forge test --contracts ./src/test/FortressLoans.exp.sol -vvv

Contract

FortressLoans.exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1523530484877209600

https://www.certik.com/resources/blog/k6eZOpnK5Kdde7RfHBZgw-fortress-loans-exploit

20220430 Saddle Finance - Swap Metapool Attack

Lost: $10 million

Testing

forge test --contracts ./src/test/Saddle_exp.sol -vvv

Contract

Saddle_exp.sol

Link reference

https://twitter.com/peckshield/status/1520330006710616064

https://medium.com/immunefi/hack-analysis-saddle-finance-april-2022-f2bcb119f38

https://github.com/Hephyrius/Immuni-Saddle-POC

20220430 Rari Capital/Fei Protocol - Flashloan Attack + Reentrancy

Lost: $80 million

Testing

forge test --contracts ./src/test/Rari_exp.t.sol -vv

Contract

Rari_exp.t.sol

Link reference

https://certik.medium.com/fei-protocol-incident-analysis-8527440696cc

https://twitter.com/peckshield/status/1520369315698016256

https://etherscan.io/tx/0xab486012f21be741c9e674ffda227e30518e8a1e37a5f1d58d0b0d41f6e76530

20220424 Wiener DOGE - Flashloan

Lost: 78 BNB

Testing

forge test --contracts ./src/test/Wdoge_exp.sol -vvv

Contract

Wdoge_exp.sol

Link reference

https://coinyuppie.com/four-combinations-of-hackers-analysis-of-attacks-on-wiener-doge-last-kilometer-medamon-and-pidao-projects/

https://twitter.com/solid_group_1/status/1519034573354676224

https://bscscan.com/tx/0x4f2005e3815c15d1a9abd8588dd1464769a00414a6b7adcbfd75a5331d378e1d

20220428 DEUS DAO - Flashloan & Price Oracle Manipulation

Lost: $13 million

Testing

forge test --contracts ./src/test/deus_exp.sol -vv

Contract

deus_exp.sol

Link reference

https://twitter.com/peckshield/status/1519531866109317121

https://ftmscan.com/tx/0xe374495036fac18aa5b1a497a17e70f256c4d3d416dd1408c026f3f5c70a3a9c

20220423 Akutar NFT - Denial of Service

Lost: 34M USD

Testing

forge test --contracts ./src/test/AkutarNFT_exp.sol -vv

Contract

AkutarNFT_exp.sol

Link reference

https://blocksecteam.medium.com/how-akutar-nft-loses-34m-usd-60d6cb053dff

https://etherscan.io/address/0xf42c318dbfbaab0eee040279c6a2588fa01a961d#code

20220421 Zeed Finance - Reward distribution flaw

Lost: $1 million

Testing

forge test --contracts ./src/test/Zeed_exp.sol -vv

Contract

Zeed_exp.sol

Link reference

https://www.cryptotimes.io/hacker-leaves-1m-to-self-destruct-after-zeed-protocol-exploit/

https://medium.com/@zeedcommunity/the-solution-for-the-yeed-lp-pool-attack-a120c53948cd

https://bscscan.com/tx/0x0507476234193a9a5c7ae2c47e4c4b833a7c3923cefc6fd7667b72f3ca3fa83a

20220416 BeanstalkFarms - DAO + Flashloan

Lost: $182 million

Testing

forge test --contracts ./src/test/Beanstalk_exp.sol -vv

Contract

Beanstalk_exp.sol

Link reference

https://rekt.news/beanstalk-rekt/

https://medium.com/uno-re/beanstalk-farms-hacked-total-damage-is-182-million-b699dd3e5c8

https://twitter.com/peckshield/status/1515680335769456640

https://etherscan.io/tx/0x68cdec0ac76454c3b0f7af0b8a3895db00adf6daaf3b50a99716858c4fa54c6f

https://etherscan.io/tx/0xcd314668aaa9bbfebaf1a0bd2b6553d01dd58899c508d4729fa7311dc5d33ad7

20220415 Rikkei Finance - Access control & Price Oracle Manipulation

Lost: $1.1 million (2671 BNB)

Testing

forge test --contracts ./src/test/Rikkei_exp.sol -vv

Contract

Rikkei_exp.sol

Link reference

https://blockmagnates.com/rikkei-finance-hack/

https://knownseclab.com/news/625e865cf1c544005a4bdaf2

https://rikkeifinance.medium.com/rikkei-finance-incident-investigation-report-b5b1745b0155

https://bscscan.com/tx/0x93a9b022df260f1953420cd3e18789e7d1e095459e36fe2eb534918ed1687492

20220412 ElephantMoney - Flashloan & Price Oracle Manipulation

Lost: $11.2 million (27,416.46 BNB)

Testing

forge test --contracts ./src/test/Elephant_Money_poc.sol -vv

Contract

Elephant_Money_poc.sol

Link reference

https://medium.com/elephant-money/reserve-exploit-52fd36ccc7e8

https://twitter.com/peckshield/status/1514023036596330496

https://twitter.com/BlockSecTeam/status/1513966074357698563

https://bscscan.com/tx/0xec317deb2f3efdc1dbf7ed5d3902cdf2c33ae512151646383a8cf8cbcd3d4577

20220411 Creat Future

Lost: $1.9 million

Testing

forge test --contracts ./src/test/cftoken_exp.sol -vv

Contract

cftoken_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1556497016016228358

https://bscscan.com/tx/0xc7647406542f8f2473a06fea142d223022370aa5722c044c2b7ea030b8965dd0

20220409 GYMNetwork - Flashloan + token migrate flaw

Lost: 1,327 WBNB

Testing

forge test --contracts ./src/test/Gym_1_exp.sol -vv

Contract

Gym_1_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1512832398643265537

https://medium.com/@Beosin_com/beosin-analysis-of-the-attack-on-gymdefi-e5a23bfd93fe

https://bscscan.com/tx/0xa5b0246f2f8d238bb56c0ddb500b04bbe0c30db650e06a41e00b6a0fff11a7e5

20220329 Ronin Network - Bridge

Lost: $624 million

Testing

forge test --contracts ./src/test/Ronin_exp.sol -vv

Contract

Ronin_exp.sol

Link reference

https://rekt.news/ronin-rekt/

https://etherscan.io/tx/0xc28fad5e8d5e0ce6a2eaf67b6687be5d58113e16be590824d6cfa1a94467d0b7

https://etherscan.io/tx/0xed2c72ef1a552ddaec6dd1f5cddf0b59a8f37f82bdda5257d9c7c37db7bb9b08

20220329 Redacted Cartel - Custom Approval Logic

Testing

forge test --contracts ./src/test/RedactedCartel_exp.sol -vv

Contract

RedactedCartel_exp.sol

Link reference

https://medium.com/immunefi/redacted-cartel-custom-approval-logic-bugfix-review-9b2d039ca2c5

20230328 SafeMoon Hack

Lost: $8.9M

Testing

forge test --contracts ./src/test/safeMoon_exp.sol -vvvv

Contract

safeMoon_exp.sol

Link reference

https://twitter.com/zokyo_io/status/1641014520041840640

20220327 Revest Finance - Reentrancy

Lost: $11.2 million

Testing

forge test --contracts ./src/test/Revest_exp.sol -vv

Contract

Revest_exp.sol

Link reference

https://blocksecteam.medium.com/revest-finance-vulnerabilities-more-than-re-entrancy-1609957b742f

https://etherscan.io/tx/0xe0b0c2672b760bef4e2851e91c69c8c0ad135c6987bbf1f43f5846d89e691428

20220326 Auctus

Lost: $726 k

Testing

forge test --contracts ./src/test/Auctus_exp.sol -vv

Contract

Auctus_exp.sol

Link reference

https://twitter.com/AuctusOptions/status/1508647849663291398?cxt=HHwWjICzpbzO5e8pAAAA

https://etherscan.io/tx/0x2e7d7e7a6eb157b98974c8687fbd848d0158d37edc1302ea08ee5ddb376befea

20220322 CompoundTUSDSweepTokenBypass

Testing

forge test --contracts ./src/test/CompoundTusd_exp.sol -vv

Contract

CompoundTusd_exp.sol

Link reference

https://blog.openzeppelin.com/compound-tusd-integration-issue-retrospective/

20220321 OneRing Finance - Flashloan & Price Oracle Manipulation

Lost: $1.45 million

Testing

forge test --contracts ./src/test/OneRing_exp.sol -vv

Contract

OneRing_exp.sol

Link reference

https://medium.com/oneringfinance/onering-finance-exploit-post-mortem-after-oshare-hack-602a529db99b

https://ftmscan.com/tx/0xca8dd33850e29cf138c8382e17a19e77d7331b57c7a8451648788bbb26a70145

20220320 Li.Fi - Bridges

Lost: $570K

Testing

forge test --contracts ./src/test/LiFi_exp.sol -vvvv

Contract

LiFi_exp.sol

Link reference

https://blog.li.fi/20th-march-the-exploit-e9e1c5c03eb9

https://twitter.com/lifiprotocol/status/1505738407938387971

https://etherscan.io/tx/0x4b4143cbe7f5475029cf23d6dcbb56856366d91794426f2e33819b9b1aac4e96

Fix

implemented a whitelist to only allow calls to approved DEXs.

20220320 Umbrella Network - Underflow

Testing

forge test --contracts ./src/test/Umbrella_exp.sol -vv

Contract

Umbrella_exp.sol

Link reference

https://medium.com/uno-re/umbrella-network-hacked-700k-lost-97285b69e8c7

https://etherscan.io/tx/0x33479bcfbc792aa0f8103ab0d7a3784788b5b0e1467c81ffbed1b7682660b4fa

20220313 Hundred Finance - ERC667 Reentrancy

Lost: $1.7 million

Testing

forge test --contracts ./src/test/HundredFinance_exp.sol -vv

Contract

HundredFinance_exp.sol

Link reference

https://medium.com/immunefi/a-poc-of-the-hundred-finance-heist-4121f23a098

https://gnosisscan.io/tx/0x534b84f657883ddc1b66a314e8b392feb35024afdec61dfe8e7c510cfac1a098

20220313 Paraluni - Flashloan & Reentrancy

Lost: $1.7 million

Testing

forge test --contracts ./src/test/Paraluni_exp.sol -vv

Contract

Paraluni_exp.sol

Link reference

https://halborn.com/explained-the-paraluni-hack-march-2022/

https://twitter.com/peckshield/status/1502815435498176514

https://mobile.twitter.com/paraluni/status/1502951606202994694

https://zhuanlan.zhihu.com/p/517535530

https://bscscan.com/tx/0x70f367b9420ac2654a5223cc311c7f9c361736a39fd4e7dff9ed1b85bab7ad54

20220309 Fantasm Finance - Business logic in mint()

Lost: $2.6 million

Testing

forge test --contracts ./src/test/Fantasm_exp.sol -vv

Contract

Fantasm_exp.sol

Link reference

https://twitter.com/fantasm_finance/status/1501569232881995785

https://medium.com/quillhash/fantom-based-protocol-fantasm-suffers-2-6m-exploit-32de8191ccd4

https://www.certik.com/resources/blog/5p92144WQ44Ytm1AL4Jt9X-fantasm-finance

20220305 Bacon Protocol - Reentrancy

Lost: $1 million

Testing

forge test --contracts ./src/test/Bacon_exp.sol -vv

Contract

Bacon_exp.sol

Link reference

https://twitter.com/peckshield/status/1500105933128495108

https://etherscan.io/tx/0xacfcaa8e1c482148f9f2d592c78ca7a27934c7333dab31978ed0aef333a28ab6

https://etherscan.io/tx/0x7d2296bcb936aa5e2397ddf8ccba59f54a178c3901666b49291d880369dbcf31

20220303 TreasureDAO - Zero Fee

Lost: $1 million

Testing

forge test --contracts ./src/test/TreasureDAO_exp.sol -vv

Contract

TreasureDAO_exp.sol

Link reference

https://slowmist.medium.com/analysis-of-the-treasuredao-zero-fee-exploit-73791f4b9c14

https://arbiscan.io/tx/0x82a5ff772c186fb3f62bf9a8461aeadd8ea0904025c3330a4d247822ff34bc02

20220214 BuildFinance - DAO

Lost: $470k

Testing

forge test --contracts ./src/test/BuildF_exp.sol -vv

Contract

BuildF_exp.sol

Link reference

https://twitter.com/finance_build/status/1493223190071554049

https://www.cryptotimes.io/build-finance-suffered-hostile-governance-takeover-lost-470k/

https://etherscan.io/tx/0x544e5849b71b98393f41d641683586d0b519c46a2eeac9bcb351917f40258a85

20220208 Sandbox LAND - Access control

Testing

forge test --contracts ./src/test/Sandbox_exp.sol -vv

Contract

Sandbox_exp.sol

Link reference

https://slowmist.medium.com/the-vulnerability-behind-the-sandbox-land-migration-2abf68933170

https://etherscan.io/tx/0x34516ee081c221d8576939f68aee71e002dd5557180d45194209d6692241f7b1

20220206 Meter - Bridge

Lost: $4.3 million

Testing

Solana TBD
forge test --contracts ./src/test/meter_exp.sol -vv

Contract

meter_exp.sol

Link reference

https://twitter.com/ishwinder/status/1490227406824685569

https://blog.chainsafe.io/breaking-down-the-meter-io-hack-a46a389e7ae4

this does not seem to be the correct transaction though: https://moonriver.moonscan.io/tx/0x5a87c24d0665c8f67958099d1ad22e39a03aa08d47d00b7276b8d42294ee0591

20220128 Qubit Finance - Bridge address(0).safeTransferFrom() does not revert

Lost: $80 million

Testing

forge test --contracts ./src/test/Qubit_exp.sol -vv

Contract

Qubit_exp.sol

Link reference

https://rekt.news/qubit-rekt/

https://medium.com/@QubitFin/protocol-exploit-report-305c34540fa3

https://etherscan.io/address/0xd01ae1a708614948b2b5e0b7ab5be6afa01325c7 https://etherscan.io/tx/0xac7292e7d0ec8ebe1c94203d190874b2aab30592327b6cc875d00f18de6f3133 https://bscscan.com/tx/0x50946e3e4ccb7d39f3512b7ecb75df66e6868b9af0eee8a7e4b61ef8a459518e

20220118 Multichain (Anyswap) - Insufficient Token Validation

Lost: $1.4 million

Testing

forge test --contracts ./src/test/Anyswap_poc.t.sol -vv

Contract

Anyswap_poc.t.sol

Link reference

https://medium.com/zengo/without-permit-multichains-exploit-explained-8417e8c1639b

https://twitter.com/PeckShieldAlert/status/1483363515411099651

https://etherscan.io/tx/0xe50ed602bd916fc304d53c4fed236698b71691a95774ff0aeeb74b699c6227f7

2021

20211221 Visor Finance - Reentrancy

Lost: $8.2 million

Testing

forge test --contracts ./src/test/Visor_exp.t.sol -vv

Contract

Visor_exp.t.sol

Link reference

https://beosin.medium.com/two-vulnerabilities-in-one-function-the-analysis-of-visor-finance-exploit-a15735e2492

https://twitter.com/GammaStrategies/status/1473306777131405314

https://etherscan.io/tx/0x69272d8c84d67d1da2f6425b339192fa472898dce936f24818fda415c1c1ff3f

20211218 Grim Finance - Flashloan & Reentrancy

Lost: $30 million

Testing

forge test --contracts ./src/test/Grim_exp.sol -vv

Contract

Grim_exp.sol

Link reference

https://cointelegraph.com/news/defi-protocol-grim-finance-lost-30m-in-5x-reentrancy-hack

https://rekt.news/grim-finance-rekt/

https://ftmscan.com/tx/0x19315e5b150d0a83e797203bb9c957ec1fa8a6f404f4f761d970cb29a74a5dd6

20211130 MonoX Finance - Price Manipulation

Lost: $31 million

Testing

forge test --contracts ./src/test/Mono_exp.t.sol -vv

Contract

Mono_exp.t.sol

Link reference

https://slowmist.medium.com/detailed-analysis-of-the-31-million-monox-protocol-hack-574d8c44a9c8

https://knownseclab.com/news/61a986811992da0067558749

https://www.tuoniaox.com/news/p-521076.html

https://polygonscan.com/tx/0x5a03b9c03eedcb9ec6e70c6841eaa4976a732d050a6218969e39483bb3004d5d

https://etherscan.io/tx/0x9f14d093a2349de08f02fc0fb018dadb449351d0cdb7d0738ff69cc6fef5f299

20211027 CreamFinance - Price Manipulation

Lost: $130M

Testing

 forge test --contracts ./src/test/Cream_2_exp.sol -vvv

Contract

Cream_2_exp.sol

Link reference

https://medium.com/immunefi/hack-analysis-cream-finance-oct-2021-fc222d913fc5

20211015 Indexed Finance - Price Manipulation

Lost: $16M

Testing

forge test --contracts src/test/IndexedFinance_exp.t.sol -vv

Contract

IndexedFinance_exp.t.sol

Link reference

https://blocksecteam.medium.com/the-analysis-of-indexed-finance-security-incident-8a62b9799836

20210916 SushiSwap Miso

Lost: All funds returned

Testing

forge test --contracts ./src/test/Sushimiso_exp.sol -vv

Contract

Sushimiso_exp.sol

Link reference

https://www.paradigm.xyz/2021/08/two-rights-might-make-a-wrong

https://etherscan.io/tx/0x78d6355703507f88f2090eb780d245b0ab26bf470eabdb004761cedf3b1cda44

20210915 Nimbus Platform

Lost: 1.45 ETH

Testing

forge test --contracts ./src/test/Nimbus_exp.sol -vv

Contract

Nimbus_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1438100688215560192

20210915 NowSwap Platform

Lost: 158.28 WETH and 535,706 USDT

Testing

forge test --contracts ./src/test/NowSwap_exp.sol -vv

Contract

NowSwap_exp.sol

Link reference

https://twitter.com/BlockSecTeam/status/1438100688215560192

20210912 ZABU Finance - Deflationary token uncompatible

Testing

forge test --contracts src/test/ZABU_exp.sol -vvv

Contract

ZABU_exp.sol

Link reference

https://slowmist.medium.com/brief-analysis-of-zabu-finance-being-hacked-44243919ea29

20210903 DAO Maker - Bad Access Controal

Lost: $4 million

Testing

forge test --contracts ./src/test/DaoMaker_exp.sol -vv

Contract

DaoMaker_exp.sol

Link reference

https://twitter.com/Mudit__Gupta/status/1434059922774237185

https://etherscan.io/tx/0xd5e2edd6089dcf5dca78c0ccbdf659acedab173a8ab3cb65720e35b640c0af7c

20210830 Cream Finance - Flashloan Attack + Reentrancy

Lost: $18 million

Testing

forge test --contracts ./src/test/Cream_exp.sol -vv

Contract

Cream_exp.sol

Link reference

https://twitter.com/peckshield/status/1432249600002478081

https://twitter.com/creamdotfinance/status/1432249773575208964

https://etherscan.io/tx/0xa9a1b8ea288eb9ad315088f17f7c7386b9989c95b4d13c81b69d5ddad7ffe61e

20210817 XSURGE - Flashloan Attack + Reentrancy

Lost: $5 million

Testing

forge test --contracts ./src/test/XSURGE_exp.t.sol -vv

Contract

XSURGE_exp.t.sol

Link reference

https://beosin.medium.com/a-sweet-blow-fb0a5e08657d

https://medium.com/@Knownsec_Blockchain_Lab/knownsec-blockchain-lab-comprehensive-analysis-of-xsurge-attacks-c83d238fbc55

https://bscscan.com/tx/0x8c93d6e5d6b3ec7478b4195123a696dbc82a3441be090e048fe4b33a242ef09d

20210811 Poly Network - Bridge, getting around modifier through cross-chain message

Lost: $611 million

Testing

forge test --contracts ./src/test/PolyNetwork/PolyNetwork_exp.sol -vv

Contract

PolyNetwork_exp.sol

Link reference

https://rekt.news/polynetwork-rekt/

https://slowmist.medium.com/the-root-cause-of-poly-network-being-hacked-ec2ee1b0c68f

https://etherscan.io/tx/0xb1f70464bd95b774c6ce60fc706eb5f9e35cb5f06e6cfe7c17dcda46ffd59581/advanced

https://github.com/polynetwork/eth-contracts/tree/d16252b2b857eecf8e558bd3e1f3bb14cff30e9b

https://www.breadcrumbs.app/reports/671

FIX

One of the biggest design lessons that people need to take away from this is: if you have cross-chain relay contracts like this, MAKE SURE THAT THEY CAN'T BE USED TO CALL SPECIAL CONTRACTS. The EthCrossDomainManager shouldn't have owned the EthCrossDomainData contract.

20210804 WaultFinace - FlashLoan price manipulation

Lost: 390 ETH

Testing

forge test --contracts ./src/test/WaultFinance_exp.sol -vvv

Contract

WaultFinance_exp.sol

Link reference

https://medium.com/@Knownsec_Blockchain_Lab/wault-finance-flash-loan-security-incident-analysis-368a2e1ebb5b

https://inspexco.medium.com/wault-finance-incident-analysis-wex-price-manipulation-using-wusdmaster-contract-c344be3ed376

20210728 Levyathan Finance - (I) Lost keys and minting (II) Vulnerable emergencyWithdraw

Lost: $1.5 million

Testing

forge test --contracts ./src/test/Levyathan_poc.sol -vv

Contract

Levyathan_poc.sol

Link reference

https://levyathan-index.medium.com/post-mortem-levyathan-c3ff7f9a6f65

20210710 Chainswap - Bridge, logic flaw

Lost: $4.4 million

Testing

forge test --contracts ./src/test/Chainswap_exp2.sol -vv

Contract

Chainswap_exp2.sol

Link reference

https://twitter.com/real_n3o/status/1414071223940571139

https://rekt.news/chainswap-rekt/

https://chain-swap.medium.com/chainswap-exploit-11-july-2021-post-mortem-6e4e346e5a32

20210702 Chainswap - Bridge, logic flaw

Lost: $.8 million

Testing

forge test --contracts ./src/test/Chainswap_exp1.sol -vv

Contract

Chainswap_exp1.sol

Link reference

https://chain-swap.medium.com/chainswap-post-mortem-and-compensation-plan-90cad50898ab

20210628 SafeDollar - Deflationary token uncompatible

Lost: $.2 million

Testing

forge test --contracts src/test/SafeDollar_exp.sol -vvv

Contract

SafeDollar_exp.sol

Link reference

https://twitter.com/peckshield/status/1409443556251430918

20210622 Eleven Finance - Doesn’t burn shares

Testing

forge test --contracts ./src/test/Eleven.sol -vv

Contract

Eleven.sol

Link reference

https://peckshield.medium.com/eleven-finance-incident-root-cause-analysis-123b5675fa76

https://bscscan.com/tx/0xeaaa8f4d33b1035a790f0d7c4eb6e38db7d6d3b580e0bbc9ba39a9d6b80dd250

20210607 88mph NFT - Access control

Testing

forge test --contracts ./src/test/88mph_exp.sol -vv

Contract

88mph_exp.sol

Link reference

https://medium.com/immunefi/88mph-function-initialization-bug-fix-postmortem-c3a2282894d3

20210603 PancakeHunny - Incorrect calculation

Testing

forge test --contracts ./src/test/PancakeHunny_exp.sol -vv

Contract

PancakeHunny_exp.sol

Link reference

https://medium.com/hunnyfinance/pancakehunny-post-mortem-analysis-de78967401d8

https://bscscan.com/tx/0x765de8357994a206bb90af57dcf427f48a2021f2f28ca81f2c00bc3b9842be8e

20210527 BurgerSwap - Mathematical flaw + Reentrancy

Testing

forge test --contracts src/test/BurgerSwap_exp.sol -vv

Contract

BurgerSwap_exp.sol

Link reference

https://twitter.com/Mudit__Gupta/status/1398156036574306304

20210519 PancakeBunny - Price Oracle Manipulation

Testing

forge test --contracts ./src/test/PancakeBunny_exp.sol -vv

Contract

PancakeBunny_exp.sol

Link reference

https://rekt.news/pancakebunny-rekt/

https://bscscan.com/tx/0x897c2de73dd55d7701e1b69ffb3a17b0f4801ced88b0c75fe1551c5fcce6a979

20210509 RariCapital - Cross Contract Reentrancy

Testing

forge test --contracts ./src/test/RariCapital_exp.sol -vv

Contract

RariCapital_exp.sol

Link reference

https://rekt.news/rari-capital-rekt/

https://etherscan.com/tx/0x171072422efb5cd461546bfe986017d9b5aa427ff1c07ebe8acc064b13a7b7be

20210508 Value Defi - Cross Contract Reentrancy

Testing

forge test --contracts ./src/test/ValueDefi_exp.sol -vv

Contract

ValueDefi_exp.sol

Link reference

https://rekt.news/rari-capital-rekt/

https://bscscan.com/tx/0xa00def91954ba9f1a1320ef582420d41ca886d417d996362bf3ac3fe2bfb9006

20210428 Uranium - Miscalculation

Lost: $50 million

Testing

forge test --contracts ./src/test/Uranium_exp.sol -vv

Contract

Uranium_exp.sol

Link reference

https://twitter.com/FrankResearcher/status/1387347025742557186

https://bscscan.com/tx/0x5a504fe72ef7fc76dfeb4d979e533af4e23fe37e90b5516186d5787893c37991

20210308 DODO - Flashloan Attack

Lost: $700,000

Testing

forge test --contracts ./src/test/dodo_flashloan_exp.sol -vv

Contract

dodo_flashloan_exp.sol

Link reference

https://blog.dodoex.io/dodo-pool-incident-postmortem-with-a-little-help-from-our-friends-327e66872d42

https://halborn.com/explained-the-dodo-dex-hack-march-2021/

https://etherscan.io/tx/0x395675b56370a9f5fe8b32badfa80043f5291443bd6c8273900476880fb5221e

20210305 Paid Network - Private key compromised

Lost: $3 million

Testing

forge test --contracts ./src/test/PAID_exp.sol -vv

Contract

PAID_exp.sol

Link reference

https://paidnetwork.medium.com/paid-network-attack-postmortem-march-7-2021-9e4c0fef0e07

https://etherscan.io/tx/0x4bb10927ea7afc2336033574b74ebd6f73ef35ac0db1bb96229627c9d77555a0

20210125 Sushi Badger Digg - Sandwich attack

Lost: 81.68 ETH

Testing

forge test --contracts src/test/Sushi-Badger_Digg.exp.sol -vvvv

Contract

Sushi-Badger_Digg.exp.sol

Link reference

https://cmichel.io/replaying-ethereum-hacks-sushiswap-badger-dao-digg/

Before 2020

20201229 Cover Protocol

Testing

forge test --contracts ./src/test/Cover_exp.sol -vv

Contract

Cover_exp.sol

Link reference

https://mudit.blog/cover-protocol-hack-analysis-tokens-minted-exploit/

https://slowmist.medium.com/a-brief-analysis-of-the-cover-protocol-hacked-event-700d747b309c

20201121 Pickle Finance

Lost: $20 million

Testing

forge test --contracts ./src/test/Pickle_exp.sol -vv

Contract

Pickle_exp.sol

Link reference

https://github.com/banteg/evil-jar

https://etherscan.io/tx/0xe72d4e7ba9b5af0cf2a8cfb1e30fd9f388df0ab3da79790be842bfbed11087b0

20201026 Harvest Finance - Flashloan Attack

Lost: $33.8 million

Testing

forge test --contracts ./src/test/HarvestFinance_exp.sol -vv

Contract

HarvestFinance_exp.sol

Link reference

https://rekt.news/harvest-finance-rekt/

https://etherscan.io/tx/0x35f8d2f572fceaac9288e5d462117850ef2694786992a8c3f6d02612277b0877

20200804 Opyn Protocol - msgValue in loop

Testing

forge test --contracts ./src/test/Opyn.exp.sol -vv

Contract

Opyn.exp.sol

Link reference

https://medium.com/opyn/opyn-eth-put-exploit-post-mortem-1a009e3347a8

https://etherscan.io/tx/0x56de6c4bd906ee0c067a332e64966db8b1e866c7965c044163a503de6ee6552a

20200618 Bancor Protocol - Access Control

Testing

forge test --contracts ./src/test/Bancor_exp.sol -vv

Contract

Bancor_exp.sol

Link reference

https://blog.bancor.network/bancors-response-to-today-s-smart-contract-vulnerability-dc888c589fe4

https://etherscan.io/address/0x5f58058c0ec971492166763c8c22632b583f667f

20180422 Beauty Chain - Integer Overflow

Lost: $900 million

Testing

forge test --contracts ./src/test/BEC_exp.sol -vv

Contract

BEC_exp.sol

Link reference

https://etherscan.io/tx/0xad89ff16fd1ebe3a0a7cf4ed282302c06626c1af33221ebe0d3a470aba4a660f

https://etherscan.io/address/0xc5d105e63711398af9bbff092d4b6769c82f793d#code

20171106 Parity - 'Accidentally Killed It'

Lost: 514k ETH

Testing

forge test --contracts ./src/test/Parity_kill.sol -vvvv

Contract

Parity_kill.sol

Link reference

https://elementus.io/blog/which-icos-are-affected-by-the-parity-wallet-bug/

https://etherscan.io/tx/0x05f71e1b2cb4f03e547739db15d080fd30c989eda04d37ce6264c5686e0722c9

https://etherscan.io/tx/0x47f7cff7a5e671884629c93b368cb18f58a993f4b19c2a53a8662e3f1482f690

View Gas Reports

Foundry also has the ability to report the gas used per function call which mimics the behavior of hardhat-gas-reporter. Generally speaking if gas costs per function call is very high, then the likelihood of its success is reduced. Gas optimization is an important activity done by smart contract developers.

Every poc in this repository can produce a gas report like this:

forge test --gas-report --contracts <contract> -vvv

For Example: Let us find out the gas used in the Audius poc

Execution

forge test --gas-report --contracts ./src/test/Audius.exp.sol -vvv

Demo

Bug Reproduce

Moved to DeFiVulnLabs

FlashLoan Testing

Moved to DeFiLabs

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