AWS WAF Access Control List Deletion
editAWS WAF Access Control List Deletion
editIdentifies the deletion of a specified AWS Web Application Firewall (WAF) access control list.
Rule type: query
Rule indices:
- filebeat-*
- logs-aws*
Severity: medium
Risk score: 47
Runs every: 10 minutes
Searches indices from: now-60m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Elastic
- Cloud
- AWS
- Continuous Monitoring
- SecOps
- Network Security
Version: 6 (version history)
Added (Elastic Stack release): 7.9.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positives
editFirewall ACL’s may be deleted by a system or network administrator. Verify whether the user identity, user agent, and/or hostname should be making changes in your environment. Web ACL deletions from unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
Investigation guide
editConfig
The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule.
Rule query
editevent.dataset:aws.cloudtrail and event.action:DeleteWebACL and event.outcome:success
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Impair Defenses
- ID: T1562
- Reference URL: https://attack.mitre.org/techniques/T1562/
Rule version history
edit- Version 6 (7.13.0 release)
-
-
Updated query, changed from:
event.action:DeleteWebACL and event.dataset:aws.cloudtrail and event.outcome:success
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- Version 5 (7.12.0 release)
-
- Formatting only
- Version 4 (7.11.2 release)
-
- Formatting only
- Version 3 (7.11.0 release)
-
- Formatting only
- Version 2 (7.10.0 release)
-
- Formatting only