mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Eric McGinnis
66 lines
4.0 KiB
YAML
66 lines
4.0 KiB
YAML
name: GitHub Enterprise Disable Dependabot
|
|
id: 787dd1c1-eb3a-4a31-8e8c-2ad24b214bc8
|
|
version: 8
|
|
creation_date: '2025-01-15'
|
|
modification_date: '2026-05-13'
|
|
author: Patrick Bareiss, Splunk
|
|
status: production
|
|
type: Anomaly
|
|
description: The following analytic detects when a user disables Dependabot security features within a GitHub repository. Dependabot helps automatically identify and fix security vulnerabilities in dependencies. The detection monitors GitHub Enterprise logs for configuration changes that disable Dependabot functionality. This behavior could indicate an attacker attempting to prevent the automatic detection of vulnerable dependencies, which would allow them to exploit known vulnerabilities that would otherwise be patched. For a SOC, identifying the disabling of security features like Dependabot is critical as it may be a precursor to supply chain attacks where attackers exploit vulnerable dependencies. The impact could be severe if vulnerabilities remain unpatched, potentially leading to code execution, data theft, or other compromises through the software supply chain.
|
|
data_source:
|
|
- GitHub Enterprise Audit Logs
|
|
search: |-
|
|
`github_enterprise` action=repository_vulnerability_alerts.disable
|
|
| fillnull
|
|
| stats count min(_time) as firstTime max(_time) as lastTime
|
|
BY actor, actor_id, actor_ip,
|
|
actor_is_bot, actor_location.country_code, business,
|
|
business_id, org, org_id,
|
|
repo, repo_id, user,
|
|
user_agent, user_id, action
|
|
| `security_content_ctime(firstTime)`
|
|
| `security_content_ctime(lastTime)`
|
|
| `github_enterprise_disable_dependabot_filter`
|
|
how_to_implement: You must ingest GitHub Enterprise logs using Audit log streaming as described in this documentation 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-streaming-to-splunk using a Splunk HTTP Event Collector.
|
|
known_false_positives: No false positives have been identified at this time.
|
|
references:
|
|
- https://www.googlecloudcommunity.com/gc/Community-Blog/Monitoring-for-Suspicious-GitHub-Activity-with-Google-Security/ba-p/763610
|
|
- 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-streaming-to-splunk
|
|
drilldown_searches:
|
|
- name: View the detection results for - "$user$"
|
|
search: '%original_detection_search% | search user = "$user$"'
|
|
earliest_offset: $info_min_time$
|
|
latest_offset: $info_max_time$
|
|
- name: View risk events for the last 7 days for - "$user$"
|
|
search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$user$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`'
|
|
earliest_offset: 7d
|
|
latest_offset: "0"
|
|
intermediate_findings:
|
|
entities:
|
|
- field: user
|
|
type: user
|
|
score: 20
|
|
message: Dependabot security features are disabled in repository $repo$ by $user$
|
|
threat_objects:
|
|
- field: user_agent
|
|
type: http_user_agent
|
|
analytic_story:
|
|
- GitHub Malicious Activity
|
|
asset_type: GitHub
|
|
mitre_attack_id:
|
|
- T1685
|
|
- T1195
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
category: cloud
|
|
security_domain: network
|
|
tests:
|
|
- name: True Positive Test
|
|
attack_data:
|
|
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1562.001/disable_dependabot/github.json
|
|
source: http:github
|
|
sourcetype: httpevent
|
|
test_type: unit
|