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Nimbus JOSE+JWT vulnerable to padding oracle attack

Low severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Jan 29, 2023

Package

maven com.nimbusds:nimbus-jose-jwt (Maven)

Affected versions

< 4.39

Patched versions

4.39

Description

Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.

References

Published by the National Vulnerability Database Aug 20, 2017
Published to the GitHub Advisory Database May 13, 2022
Reviewed Nov 8, 2022
Last updated Jan 29, 2023

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS score

0.105%
(44th percentile)

Weaknesses

CVE ID

CVE-2017-12973

GHSA ID

GHSA-jfmq-4g4m-99rh

Source code

No known source code
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