Suspicious Bitbucket User Details Export Attempt Detected (via audit)

title: Suspicious Bitbucket User Details Export Attempt Detected (via audit)
id: f6ecf4ae-fd9b-52fb-afa4-b9d3b93093c3
status: stable
description: This rule detects user data export activity.
references:
    - https://attack.mitre.org/techniques/T1591/004/
    - https://attack.mitre.org/techniques/T1082/
    - https://attack.mitre.org/techniques/T1213/
    - https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
    - https://support.atlassian.com/security-and-access-policies/docs/export-user-accounts
author: Huntrule Team
date: 2026-04-08
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:
    - Unknown
level: medium