Title

If the system is using LDAP for authentication or account information, the TLS certificate authority file and/or directory (as appropriate) must have mode 0644 (0755 for directories) or less permissive. (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

Check if the system is using NSS LDAP. # grep -v '^#' /etc/nsswitch.conf | grep ldap If no lines are returned, this vulnerability is not applicable. Verify the mode of the certificate database files. # ls -lL /var/ldap/cert8.db /var/ldap/key3.db /var/ldap/secmod.db If the mode of any of the files is more permissive than 0644, this is a finding.

Fix Text

Change the mode of the certificate database files. # chmod 0644 /var/ldap/cert8.db /var/ldap/key3.db /var/ldap/secmod.db NOTE: Some SAs may prefer to set the permissions to 0600. This is acceptable.

Additional Identifiers

Rule ID: SV-227975r603266_rule

Vulnerability ID: V-227975

Group Title: SRG-OS-000480

Expert Comments

CCIs tied to check.

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