Title

SLEM 5 file integrity tool must be configured to verify Access Control Lists (ACLs). (Cat II impact)

Discussion

ACLs can provide permissions beyond those permitted through the file mode and must be verified by file integrity tools.

Check Content

Verify that SLEM 5 file integrity tool is configured to verify extended attributes. > sudo grep acl /etc/aide.conf All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux If the "acl" rule is not being used on all selection lines in the "/etc/aide.conf" file, or extended attributes are not being checked by another file integrity tool, this is a finding.

Fix Text

Configure SLEM 5 file integrity tool to check file and directory ACLs. If AIDE is installed, ensure the "acl" rule is present on all file and directory selection lists.

Additional Identifiers

Rule ID: SV-261404r996629_rule

Vulnerability ID: V-261404

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

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