← Back to SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

V-22557

CAT II (Medium)

If the system is using LDAP for authentication or account information, the LDAP TLS connection must require the server provide a certificate with a valid trust path to a trusted CA.

Rule ID

SV-46000r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-000185

Discussion

The NSS LDAP service provides user mappings which are a vital component of system security. Communication between an LDAP server and a host using LDAP for NSS require authentication.

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 a server certificate is required and verified by the NSS LDAP configuration.
# grep -i '^tls_checkpeer' /etc/ldap.conf
If no line is returned, or the value is not "yes", this is a finding.

Fix Text

Edit "/etc/ldap.conf" and add or set the "tls_checkpeer" setting to "yes".