Checks whether the Bucket ACL parameter of each Object Storage Service (OSS) bucket is set to Private. If so, the evaluation result is Compliant.
Scenarios
If an OSS bucket allows read and write access from the Internet, unauthorized tampering may occur when the data is exposed to the Internet. Therefore, an OSS bucket must deny read and write access from the Internet.
Risk level
Default risk level: high.
When you apply this rule, you can change the risk level based on your business requirements.
Compliance evaluation logic
- If the Bucket ACL parameter of each OSS bucket is set to Private, the evaluation result is Compliant.
- If the Bucket ACL parameter of an OSS bucket is set to Public Read or Public Read/Write, the evaluation result is Incompliant. For more information about how to remediate an incompliant configuration, see Incompliance remediation.
Rule details
| Item | Description |
| Rule name | OSS bucket public write prohibited |
| Rule identifier | oss-bucket-public-write-prohibited |
| Tag | OSS and Bucket |
| Automatic remediation | Yes |
| Trigger type | Configuration change |
| Supported resource type | OSS bucket |
| Input parameter | None |
Incompliance remediation
Set the Bucket ACL of an OSS bucket to Private. For more information, see Modify the ACL of a bucket.