Rules: AWS CloudTrail - S3 Bucket Public Access Block Disabled
Detects when GetPublicAccessBlock returns NoSuchPublicAccessBlockConfiguration, indicating the public access block has all values are set to false or the feature is disabled.
| Detail | Value |
|---|---|
| Type | Templated Match |
| Category | Collection |
| Apply Risk to Entities | srcDevice_ip, device_ip, user_username |
| Signal Name | AWS CloudTrail - An S3 Bucket Public Access Block is Disabled |
| Summary Expression | An S3 Bucket Public Access Block is Disabled. {{action}} command run by User: {{user_username}} with IP: {{srcDevice_ip}} User: {{user_username}} |
| Score/Severity | Static: 2 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0009, _mitreAttackTechnique:T1530 |
| Origin | Field |
|---|---|
| Normalized Schema | action |
| Normalized Schema | device_ip |
| Direct from Record | fields['errorCode'] |
| Normalized Schema | metadata_product |
| Normalized Schema | metadata_vendor |
| Normalized Schema | srcDevice_ip |
| Normalized Schema | user_username |