Bitbucket Unauthorized Full Data Export Triggered — Sigma Rule

Rule metadata and linked tags

Author: Muhammad Faisal (@faisalusuf). Source status: test; severity: critical. Source dates: 2024-02-25 / not supplied.

{
  "product": "bitbucket",
  "service": "audit",
  "definition": "Requirements: \"Advance\" log level is required to receive these audit events."
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: 4bd0160241f2fba2f3bba2f2f0b75a6ac7db0e8075bd764582d3ee257d448559

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

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

Original YAML and metadata in JSON

False positives

• Unlikely

Source references

• https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
• https://confluence.atlassian.com/bitbucketserver/secret-scanning-1157471613.html