Github High Risk Configuration Disabled

Detects when a user disables a critical security feature for an organization.

Sigma rule (View on GitHub)

 1title: Github High Risk Configuration Disabled
 2id: 8622c92d-c00e-463c-b09d-fd06166f6794
 3status: test
 4description: Detects when a user disables a critical security feature for an organization.
 5references:
 6    - https://docs.github.com/en/organizations/managing-oauth-access-to-your-organizations-data/disabling-oauth-app-access-restrictions-for-your-organization
 7    - https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/reviewing-the-audit-log-for-your-organization#dependabot_alerts-category-actions
 8    - https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-security-and-analysis-settings-for-your-repository
 9    - https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/audit-log-events-for-your-enterprise
10author: Muhammad Faisal (@faisalusuf)
11date: 2023/01/29
12modified: 2024/07/22
13tags:
14    - attack.credential_access
15    - attack.defense_evasion
16    - attack.persistence
17    - attack.t1556
18logsource:
19    product: github
20    service: audit
21    definition: 'Requirements: The audit log streaming feature must be enabled to be able to receive such logs. You can enable following the documentation here: https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/streaming-the-audit-log-for-your-enterprise#setting-up-audit-log-streaming'
22detection:
23    selection:
24        action:
25            - 'business_advanced_security.disabled_for_new_repos'
26            - 'business_advanced_security.disabled_for_new_user_namespace_repos'
27            - 'business_advanced_security.disabled'
28            - 'business_advanced_security.user_namespace_repos_disabled'
29            - 'org.advanced_security_disabled_for_new_repos'
30            - 'org.advanced_security_disabled_on_all_repos'
31            - 'org.advanced_security_policy_selected_member_disabled'
32            - 'org.disable_oauth_app_restrictions'
33            - 'org.disable_two_factor_requirement'
34            - 'repo.advanced_security_disabled'
35    condition: selection
36falsepositives:
37    - Approved administrator/owner activities.
38level: high

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