Detection rules › Sigma
Bitbucket Global Permission Changed
Detects global permissions change activity.
Known false positives
- Legitimate user activity.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | |
| Privilege Escalation |
Rule body
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
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
auditType.category: 'Permissions'
auditType.action:
- 'Global permission remove request'
- 'Global permission removed'
- 'Global permission granted'
- 'Global permission requested'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
auditType.action | eq |
| field:"auditType.action" kind:eq |
auditType.category | eq |
| field:"auditType.category" kind:eq value:"Permissions" |