mirror of
https://github.com/splunk/security_content
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Bhavin Patel
67 lines
3.1 KiB
YAML
67 lines
3.1 KiB
YAML
name: GitHub Dependabot Alert
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id: 05032b04-4469-4034-9df7-05f607d75cba
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version: 6
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date: '2025-02-10'
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author: Patrick Bareiss, Splunk
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status: removed
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type: Anomaly
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description: The following analytic identifies the creation of GitHub Dependabot alerts,
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which indicate potential vulnerabilities in the codebase. It detects this activity
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by searching for logs with the "create" action and analyzing fields such as affected
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package, severity, and fixed version. This detection is significant for a SOC because
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it helps identify and address security risks in the codebase proactively. If confirmed
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malicious, these vulnerabilities could be exploited by attackers to gain unauthorized
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access or cause breaches, leading to potential data loss or system compromise.
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data_source:
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- GitHub Webhooks
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search: '`github` alert.id=* action=create | rename repository.full_name as repository,
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repository.html_url as repository_url sender.login as user | stats min(_time) as
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firstTime max(_time) as lastTime by action alert.affected_package_name alert.affected_range
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alert.created_at alert.external_identifier alert.external_reference alert.fixed_in
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alert.severity repository repository_url user | eval phase="code" | `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)` | `github_dependabot_alert_filter`'
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how_to_implement: You must index GitHub logs. You can follow the url in reference
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to onboard GitHub logs.
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known_false_positives: unknown
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references:
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- https://www.splunk.com/en_us/blog/tips-and-tricks/getting-github-data-with-webhooks.html
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drilldown_searches:
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- name: View the detection results for - "$repository$"
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search: '%original_detection_search% | search repository = "$repository$"'
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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- name: View risk events for the last 7 days for - "$repository$"
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search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$repository$")
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starthoursago=168 | stats count min(_time) as firstTime max(_time) as lastTime
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values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories)
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as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic)
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as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`'
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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rba:
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message: Vulnerabilities found in packages used by GitHub repository $repository$
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risk_objects:
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- field: repository
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type: other
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score: 27
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threat_objects: []
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tags:
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analytic_story:
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- Dev Sec Ops
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asset_type: GitHub
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mitre_attack_id:
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- T1195.001
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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security_domain: network
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tests:
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- name: True Positive Test
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attack_data:
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- data:
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https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1195.001/github_security_advisor_alert/github_security_advisor_alert.json
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sourcetype: aws:firehose:json
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source: github
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