AWS Bucket Block Public Access Weakened

sigmaDRL-1.1from SigmaHQ/sigma

Detects the weakening of "Block Public Access" setting of S3 buckets in CloudTrail logs. Monitoring changes to Block Public Access settings is critical, as attackers may disable these safeguards before exposing a bucket through a public ACL or bucket policy.

quality100

fp risk—

forks0

ATT&CK techniques

T1686.001

rule sourcelocked

title: ████████████████████████
id: ████████-████-████-████-████████████
status: ██████████
description: ██████████████████████████████████████████
             ████████████████████████████████████████
author: ████████
tags:
  - attack.████
  - attack.████
logsource:
  product: ████████
  category: ████████████
detection:
  selection:
    Image|endswith: '████████████████'
    CommandLine|contains:
      - '████████████████████████'
      - '████████████████████████'
      - '██████████████████'
  condition: selection
level: ████████
falsepositives:
  - ████████████████████

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