Title

If the system is using LDAP for authentication or account information, the LDAP TLS certificate authority file and/or directory (as appropriate) must not have an extended ACL. (Cat II impact)

Discussion

LDAP can be used to provide user authentication and account information, which are vital to system security. The LDAP client configuration must be protected from unauthorized modification.

Check Content

Determine if the system uses LDAP. If it does not, this is not applicable. # swlist | grep LDAP OR # cat /etc/nsswitch.conf | sed -e 's/^[ \t]*//' | tr '\011' ' ' | tr -s ' ' | grep -v "^#" | grep -i ldap If nothing is returned for either of the above commands, this is not applicable. If LDAP is installed, check the permissions of the LDAP cert file(s). # ls -lLd /etc/opt/ldapux # ls -lLa /etc/opt/ldapux/cert8.db If the permissions of the file or directory contains a "+", an extended ACL is present, this is a finding.

Fix Text

Remove the extended ACL from the certificate file. # chacl -z <directory> # chacl -z <directory>/<file>

Additional Identifiers

Rule ID: SV-38389r1_rule

Vulnerability ID: V-22566

Group Title: GEN008200

Expert Comments

CCIs tied to check.

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