Suspicious Bitbucket Global Permission Changed (via audit)

This rule detects global permissions change activity.

Sigmamediumv1
sigma
title: Suspicious Bitbucket Global Permission Changed (via audit)
id: fc6c5ae7-796d-5dab-b322-912718c72a24
status: stable
description: This rule detects global permissions change activity.
references:
    - https://attack.mitre.org/techniques/T1098/
    - https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
    - https://confluence.atlassian.com/bitbucketserver/global-permissions-776640369.html
author: Huntrule Team
date: 2026-06-24
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:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.