The operator must document all file system objects that have non-standard access control list settings.
An XCCDF Rule
Description
<VulnDiscussion>Access Control Lists allow an object owner to expand permissions on an object to specific users and groups in addition to the standard permission model. Non-standard Access Control List settings can allow unauthorized users to modify critical files.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-216441r959010_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
The root role is required.
Remove ACLs that are not approved in the security policy.
For ZFS file systems, remove all extended ACLs with the following command: