{"id":"16ab6143-510a-44e2-a615-bdb80b8317fc","title":"Bitbucket Global SSH Settings Changed","description":"Detects Bitbucket global SSH access configuration changes.","author":"Muhammad Faisal (@faisalusuf)","status":"test","level":"medium","date":"2024-02-25","modified":"","tags":["attack.lateral-movement","attack.defense-impairment","attack.t1685","attack.t1021.004"],"technique_ids":["T1021.004","T1685"],"logsource":{"product":"bitbucket","service":"audit","definition":"Requirements: \"Advance\" log level is required to receive these audit events."},"falsepositives":["Legitimate user activity."],"references":["https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html","https://confluence.atlassian.com/bitbucketserver/enable-ssh-access-to-git-repositories-776640358.html"],"source_path":"rules/application/bitbucket/audit/bitbucket_audit_global_ssh_settings_change_detected.yml","source_sha256":"d15f178f92db103c7f1432be405b5632e5788fdd82d33a0fa58a14833bcd03da","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/application/bitbucket/audit/bitbucket_audit_global_ssh_settings_change_detected.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Bitbucket Global SSH Settings Changed\nid: 16ab6143-510a-44e2-a615-bdb80b8317fc\nstatus: test\ndescription: Detects Bitbucket global SSH access configuration changes.\nreferences:\n    - https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html\n    - https://confluence.atlassian.com/bitbucketserver/enable-ssh-access-to-git-repositories-776640358.html\nauthor: Muhammad Faisal (@faisalusuf)\ndate: 2024-02-25\ntags:\n    - attack.lateral-movement\n    - attack.defense-impairment\n    - attack.t1685\n    - attack.t1021.004\nlogsource:\n    product: bitbucket\n    service: audit\n    definition: 'Requirements: \"Advance\" log level is required to receive these audit events.'\ndetection:\n    selection:\n        auditType.category: 'Global administration'\n        auditType.action: 'SSH settings changed'\n    condition: selection\nfalsepositives:\n    - Legitimate user activity.\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1021.004","id":"T1021.004","name":"SSH","page":"techniques/enterprise/T1021.004/"},{"key":"enterprise/T1685","id":"T1685","name":"Disable or Modify Tools","page":"techniques/enterprise/T1685/"}],"data_path":"data/detection-rules/16ab6143-510a-44e2-a615-bdb80b8317fc.json","kind":"sigma"}