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BED-5036 implement post processing for CoerceAndRelayNTLMToSMB (#1015)
* BED-5036 implement post processing for CoerceAndRelayNTLMToSMB
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2024 Specter Ops, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| //go:build integration | ||
| // +build integration | ||
|
|
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| package ad_test | ||
|
|
||
| import ( | ||
| "context" | ||
| "strings" | ||
| "testing" | ||
|
|
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| "github.com/specterops/bloodhound/analysis" | ||
| ad2 "github.com/specterops/bloodhound/analysis/ad" | ||
| "github.com/specterops/bloodhound/analysis/impact" | ||
| "github.com/specterops/bloodhound/dawgs/graph" | ||
| "github.com/specterops/bloodhound/dawgs/ops" | ||
| "github.com/specterops/bloodhound/dawgs/query" | ||
| "github.com/specterops/bloodhound/graphschema" | ||
| "github.com/specterops/bloodhound/graphschema/ad" | ||
| "github.com/specterops/bloodhound/src/test/integration" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
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| func TestPostNTLM(t *testing.T) { | ||
| testContext := integration.NewGraphTestContext(t, graphschema.DefaultGraphSchema()) | ||
|
|
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| testContext.DatabaseTestWithSetup(func(harness *integration.HarnessDetails) error { | ||
| harness.NTLMCoerceAndRelayNTLMToSMB.Setup(testContext) | ||
| return nil | ||
| }, func(harness integration.HarnessDetails, db graph.Database) { | ||
| operation := analysis.NewPostRelationshipOperation(context.Background(), db, "NTLM Post Process Test - CoerceAndRelayNTLMToSMB") | ||
|
|
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| groupExpansions, computers, domains, authenticatedUsers, err := fetchNTLMPrereqs(db) | ||
| require.NoError(t, err) | ||
|
|
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| for _, domain := range domains { | ||
| innerDomain := domain | ||
|
|
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| err = operation.Operation.SubmitReader(func(ctx context.Context, tx graph.Transaction, outC chan<- analysis.CreatePostRelationshipJob) error { | ||
| for _, computer := range computers { | ||
| innerComputer := computer | ||
| domainSid, _ := innerDomain.Properties.Get(ad.Domain.String()).String() | ||
| authenticatedUserID := authenticatedUsers[domainSid] | ||
|
|
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| if err = ad2.PostCoerceAndRelayNTLMToSMB(tx, outC, groupExpansions, innerComputer, authenticatedUserID); err != nil { | ||
| t.Logf("failed post processig for %s: %v", ad.CoerceAndRelayNTLMToSMB.String(), err) | ||
| } | ||
| } | ||
| return nil | ||
| }) | ||
| require.NoError(t, err) | ||
| } | ||
|
|
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| err = operation.Done() | ||
| require.NoError(t, err) | ||
|
|
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| // Test start node | ||
| db.ReadTransaction(context.Background(), func(tx graph.Transaction) error { | ||
| if results, err := ops.FetchStartNodes(tx.Relationships().Filterf(func() graph.Criteria { | ||
| return query.Kind(query.Relationship(), ad.CoerceAndRelayNTLMToSMB) | ||
| })); err != nil { | ||
| t.Fatalf("error fetching ntlm to smb edges in integration test; %v", err) | ||
| } else { | ||
| require.Len(t, results, 1) | ||
| resultIds := results.IDs() | ||
|
|
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| objectId := results.Get(resultIds[0]).Properties.Get("objectid") | ||
| require.False(t, objectId.IsNil()) | ||
|
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| objectIdStr, err := objectId.String() | ||
| require.NoError(t, err) | ||
| assert.True(t, strings.HasSuffix(objectIdStr, ad2.AuthenticatedUsersSuffix)) | ||
| } | ||
| return nil | ||
| }) | ||
|
|
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| // Test end node | ||
| db.ReadTransaction(context.Background(), func(tx graph.Transaction) error { | ||
| if results, err := ops.FetchEndNodes(tx.Relationships().Filterf(func() graph.Criteria { | ||
| return query.Kind(query.Relationship(), ad.CoerceAndRelayNTLMToSMB) | ||
| })); err != nil { | ||
| t.Fatalf("error fetching ntlm to smb edges in integration test; %v", err) | ||
| } else { | ||
| require.Len(t, results, 1) | ||
| resultIds := results.IDs() | ||
|
|
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| objectId := results.Get(resultIds[0]).Properties.Get("objectid") | ||
| require.False(t, objectId.IsNil()) | ||
|
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| smbSigning, err := results.Get(resultIds[0]).Properties.Get(ad.SMBSigning.String()).Bool() | ||
| require.NoError(t, err) | ||
|
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| restrictOutbountNtlm, err := results.Get(resultIds[0]).Properties.Get(ad.RestrictOutboundNTLM.String()).Bool() | ||
| require.NoError(t, err) | ||
|
|
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| assert.False(t, smbSigning) | ||
| assert.False(t, restrictOutbountNtlm) | ||
| } | ||
| return nil | ||
| }) | ||
| }) | ||
| } | ||
|
|
||
| func fetchNTLMPrereqs(db graph.Database) (expansions impact.PathAggregator, computers []*graph.Node, domains []*graph.Node, authenticatedUsers map[string]graph.ID, err error) { | ||
| cache := make(map[string]graph.ID) | ||
| if expansions, err = ad2.ExpandAllRDPLocalGroups(context.Background(), db); err != nil { | ||
| return nil, nil, nil, cache, err | ||
| } else if computers, err = ad2.FetchNodesByKind(context.Background(), db, ad.Computer); err != nil { | ||
| return nil, nil, nil, cache, err | ||
| } else if err = db.ReadTransaction(context.Background(), func(tx graph.Transaction) error { | ||
| if cache, err = ad2.FetchAuthUsersMappedToDomains(tx); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }); err != nil { | ||
| return nil, nil, nil, cache, err | ||
| } else if domains, err = ad2.FetchNodesByKind(context.Background(), db, ad.Domain); err != nil { | ||
| return nil, nil, nil, cache, err | ||
| } else { | ||
| return expansions, computers, domains, cache, nil | ||
| } | ||
| } |
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150 changes: 150 additions & 0 deletions
150
cmd/api/src/test/integration/harnesses/CoerceAndRelayNTLMToSMB.json
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| { | ||
| "style": { | ||
| "font-family": "sans-serif", | ||
| "background-color": "#ffffff", | ||
| "background-image": "", | ||
| "background-size": "100%", | ||
| "node-color": "#ffffff", | ||
| "border-width": 4, | ||
| "border-color": "#000000", | ||
| "radius": 50, | ||
| "node-padding": 5, | ||
| "node-margin": 2, | ||
| "outside-position": "auto", | ||
| "node-icon-image": "", | ||
| "node-background-image": "", | ||
| "icon-position": "outside", | ||
| "icon-size": 64, | ||
| "caption-position": "inside", | ||
| "caption-max-width": 200, | ||
| "caption-color": "#000000", | ||
| "caption-font-size": 50, | ||
| "caption-font-weight": "normal", | ||
| "label-position": "inside", | ||
| "label-display": "pill", | ||
| "label-color": "#000000", | ||
| "label-background-color": "#ffffff", | ||
| "label-border-color": "#000000", | ||
| "label-border-width": 4, | ||
| "label-font-size": 40, | ||
| "label-padding": 5, | ||
| "label-margin": 4, | ||
| "directionality": "directed", | ||
| "detail-position": "inline", | ||
| "detail-orientation": "parallel", | ||
| "arrow-width": 5, | ||
| "arrow-color": "#000000", | ||
| "margin-start": 5, | ||
| "margin-end": 5, | ||
| "margin-peer": 20, | ||
| "attachment-start": "normal", | ||
| "attachment-end": "normal", | ||
| "relationship-icon-image": "", | ||
| "type-color": "#000000", | ||
| "type-background-color": "#ffffff", | ||
| "type-border-color": "#000000", | ||
| "type-border-width": 0, | ||
| "type-font-size": 16, | ||
| "type-padding": 5, | ||
| "property-position": "outside", | ||
| "property-alignment": "colon", | ||
| "property-color": "#000000", | ||
| "property-font-size": 16, | ||
| "property-font-weight": "normal" | ||
| }, | ||
| "nodes": [ | ||
| { | ||
| "id": "n0", | ||
| "position": { | ||
| "x": 0, | ||
| "y": 0 | ||
| }, | ||
| "caption": "computer3", | ||
| "style": {}, | ||
| "labels": [], | ||
| "properties": {} | ||
| }, | ||
| { | ||
| "id": "n1", | ||
| "position": { | ||
| "x": 284.5, | ||
| "y": 0 | ||
| }, | ||
| "caption": "Server Admins", | ||
| "style": {}, | ||
| "labels": [], | ||
| "properties": {} | ||
| }, | ||
| { | ||
| "id": "n2", | ||
| "position": { | ||
| "x": 485.67187924757275, | ||
| "y": -201.17187924757275 | ||
| }, | ||
| "caption": "computer8", | ||
| "style": {}, | ||
| "labels": [], | ||
| "properties": { | ||
| "smb_signing": "false" | ||
| } | ||
| }, | ||
| { | ||
| "id": "n3", | ||
| "position": { | ||
| "x": 0, | ||
| "y": -201.17187924757275 | ||
| }, | ||
| "caption": "Authenticated Users", | ||
| "style": {}, | ||
| "labels": [], | ||
| "properties": { | ||
| "objectid": "authenticatedusers-S-1-5-11" | ||
| } | ||
| }, | ||
| { | ||
| "id": "n4", | ||
| "position": { | ||
| "x": 665.8359396237863, | ||
| "y": -381.3359396237863 | ||
| }, | ||
| "caption": "Domain Admins User", | ||
| "style": {}, | ||
| "labels": [], | ||
| "properties": {} | ||
| } | ||
| ], | ||
| "relationships": [ | ||
| { | ||
| "id": "n0", | ||
| "type": "MemberOf", | ||
| "style": {}, | ||
| "properties": {}, | ||
| "fromId": "n0", | ||
| "toId": "n1" | ||
| }, | ||
| { | ||
| "id": "n1", | ||
| "type": "AdminTo", | ||
| "style": {}, | ||
| "properties": {}, | ||
| "fromId": "n1", | ||
| "toId": "n2" | ||
| }, | ||
| { | ||
| "id": "n2", | ||
| "type": "CoerceAndRelayNTLMToSMB", | ||
| "style": {}, | ||
| "properties": {}, | ||
| "fromId": "n3", | ||
| "toId": "n2" | ||
| }, | ||
| { | ||
| "id": "n3", | ||
| "type": "HasSession", | ||
| "style": {}, | ||
| "properties": {}, | ||
| "fromId": "n2", | ||
| "toId": "n4" | ||
| } | ||
| ] | ||
| } |
18 changes: 18 additions & 0 deletions
18
cmd/api/src/test/integration/harnesses/CoerceAndRelayNTLMToSMB.svg
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