Sigma rules for CVE-2019-15005
14 rules · scoped to cve · back to CVE-2019-15005
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
title: Bitbucket Unauthorized Full Data Export Triggered
id: 34d81081-03c9-4a7f-91c9-5e46af625cde
status: test
description: Detects when full data export is attempted an unauthorized user.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.collection
- attack.resource-development
- attack.t1213.003
- attack.t1586
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Data pipeline'
auditType.action: 'Unauthorized full data export triggered'
condition: selection
falsepositives:
- Unlikely
level: critical
title: Bitbucket Unauthorized Access To A Resource
id: 7215374a-de4f-4b33-8ba5-70804c9251d3
status: test
description: Detects unauthorized access attempts to a resource.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.resource-development
- attack.t1586
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Security'
auditType.action: 'Unauthorized access to a resource'
condition: selection
falsepositives:
- Access attempts to non-existent repositories or due to outdated plugins. Usually "Anonymous" user is reported in the "author.name" field in most cases.
level: critical
title: Bitbucket Full Data Export Triggered
id: 195e1b9d-bfc2-4ffa-ab4e-35aef69815f8
status: test
description: Detects when full data export is attempted.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/adminjiraserver0811/importing-and-exporting-data-1019391889.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.collection
- attack.t1213.003
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Data pipeline'
auditType.action: 'Full data export triggered'
condition: selection
falsepositives:
- Legitimate user activity.
level: high
title: Bitbucket Secret Scanning Exempt Repository Added
id: b91e8d5e-0033-44fe-973f-b730316f23a1
status: test
description: Detects when a repository is exempted from secret scanning feature.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Repositories'
auditType.action: 'Secret scanning exempt repository added'
condition: selection
falsepositives:
- Legitimate user activity.
level: high
title: Bitbucket User Login Failure
id: 70ed1d26-0050-4b38-a599-92c53d57d45a
status: test
description: |
Detects user authentication failure events.
Please note that this rule can be noisy and it is recommended to use with correlation based on "author.name" field.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.credential-access
- attack.stealth
- attack.t1078.004
- attack.t1110
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Authentication'
auditType.action: 'User login failed'
condition: selection
falsepositives:
- Legitimate user wrong password attempts.
level: medium
title: Bitbucket User Details Export Attempt Detected
id: 5259cbf2-0a75-48bf-b57a-c54d6fabaef3
status: test
description: Detects user data export activity.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://support.atlassian.com/security-and-access-policies/docs/export-user-accounts
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.collection
- attack.reconnaissance
- attack.discovery
- attack.t1213
- attack.t1082
- attack.t1591.004
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Users and groups'
auditType.action:
- 'User permissions export failed'
- 'User permissions export started'
- 'User permissions exported'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket Audit Log Configuration Updated
id: 6aa12161-235a-4dfb-9c74-fe08df8d8da1
status: test
description: Detects changes to the bitbucket audit log configuration.
references:
- https://confluence.atlassian.com/bitbucketserver/view-and-configure-the-audit-log-776640417.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Auditing'
auditType.action: 'Audit log configuration updated'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket Global SSH Settings Changed
id: 16ab6143-510a-44e2-a615-bdb80b8317fc
status: test
description: Detects Bitbucket global SSH access configuration changes.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/enable-ssh-access-to-git-repositories-776640358.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.lateral-movement
- attack.defense-impairment
- attack.t1685
- attack.t1021.004
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Global administration'
auditType.action: 'SSH settings changed'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket Global Permission Changed
id: aac6c4f4-87c7-4961-96ac-c3fd3a42c310
status: test
description: Detects global permissions change activity.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/global-permissions-776640369.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.persistence
- attack.privilege-escalation
- attack.t1098
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Permissions'
auditType.action:
- 'Global permission remove request'
- 'Global permission removed'
- 'Global permission granted'
- 'Global permission requested'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket User Login Failure Via SSH
id: d3f90469-fb05-42ce-b67d-0fded91bbef3
status: test
description: |
Detects SSH user login access failures.
Please note that this rule can be noisy and is recommended to use with correlation based on "author.name" field.
references:
- https://confluence.atlassian.com/bitbucketserver/view-and-configure-the-audit-log-776640417.html
- https://confluence.atlassian.com/bitbucketserver/enable-ssh-access-to-git-repositories-776640358.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.lateral-movement
- attack.credential-access
- attack.t1021.004
- attack.t1110
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Authentication'
auditType.action: 'User login failed(SSH)'
condition: selection
falsepositives:
- Legitimate user wrong password attempts.
level: medium
title: Bitbucket Global Secret Scanning Rule Deleted
id: e16cf0f0-ee88-4901-bd0b-4c8d13d9ee05
status: test
description: Detects Bitbucket global secret scanning rule deletion activity.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Global administration'
auditType.action: 'Global secret scanning rule deleted'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket User Permissions Export Attempt
id: 87cc6698-3e07-4ba2-9b43-a85a73e151e2
status: test
description: Detects user permission data export attempt.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/users-and-groups-776640439.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.reconnaissance
- attack.collection
- attack.discovery
- attack.t1213
- attack.t1082
- attack.t1591.004
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Users and groups'
auditType.action:
- 'User details export failed'
- 'User details export started'
- 'User details exported'
condition: selection
falsepositives:
- Legitimate user activity.
level: medium
title: Bitbucket Secret Scanning Rule Deleted
id: ff91e3f0-ad15-459f-9a85-1556390c138d
status: test
description: Detects when secret scanning rule is deleted for the project or repository.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
selection:
auditType.category:
- 'Projects'
- 'Repositories'
auditType.action:
- 'Project secret scanning rule deleted'
- 'Repository secret scanning rule deleted'
condition: selection
falsepositives:
- Legitimate user activity.
level: low
title: Bitbucket Project Secret Scanning Allowlist Added
id: 42ccce6d-7bd3-4930-95cd-e4d83fa94a30
status: test
description: Detects when a secret scanning allowlist rule is added for projects.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.defense-impairment
- attack.t1685
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Basic" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Projects'
auditType.action: 'Project secret scanning allowlist rule added'
condition: selection
falsepositives:
- Legitimate user activity.
level: low