Title

The SUSE operating system file integrity tool must be configured to verify Access Control Lists (ACLs). (Cat III 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 the SUSE operating system file integrity tool is configured to verify extended attributes. If there is no application installed to perform integrity checks, this is a finding. Check the "/etc/aide.conf" file to determine if the "xattrs" rule has been added to the rule list being applied to the files and directories selection lists. An example rule that includes the "acl" rule follows: All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux /bin All > apply the custom rule to the files in bin /sbin All > apply the same custom rule to the files in sbin 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 the SUSE operating system 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-234986r880968_rule

Vulnerability ID: V-234986

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.