If the system is using LDAP for authentication or account information, the system must verify the LDAP server's certificate has not been revoked.

From HP-UX 11.31 Security Technical Implementation Guide

Associated with IA controls: DCNR-1

Associated with: CCI-000185

SV-38382r1_rule If the system is using LDAP for authentication or account information, the system must verify the LDAP server's certificate has not been revoked.

Vulnerability discussion

LDAP can be used to provide user authentication and account information, which are vital to system security. Communication between an LDAP server and a host using LDAP requires authentication.

Check content

Determine if the system uses LDAP. If it does not, this is not applicable. # swlist | grep LDAP OR # cat /etc/nsswitch.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | grep -v "^#" | grep -i ldap If no lines are returned for either of the above commands, this vulnerability is not applicable. Verify the LDAP client is configured to check certificates against a certificate revocation list. # cat /etc/ldap.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | grep -v "^#" | \ grep -i "^tls_crlcheck" If the setting does not exist, or the value is not all, this is a finding.

Fix text

Edit /etc/ldap.conf and add or set the tls_crlcheck setting to all.

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