Title

The file integrity tool must be configured to verify extended attributes. (Cat III impact)

Discussion

Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications.

Check Content

If using AIDE, verify the configuration contains the xattrs option for all monitored files and directories. Here is an example AIDE configuration fragment. SampleRule = p+i+l+n+u+g+s+m+c+acl+xattrs+sha256 /bin SampleRule If the xattrs option is not present, this is a finding. If using a different file integrity tool, check the configuration per tool documentation.

Fix Text

If using AIDE, edit the configuration and add the xattrs option for all monitored files and directories. If using a different file integrity tool, configure extended attributes checking per the tool's documentation.

Additional Identifiers

Rule ID: SV-227954r854520_rule

Vulnerability ID: V-227954

Group Title: SRG-OS-000445

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.