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

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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22557	GEN008020	SV-26943r1_rule	DCNR-1	Medium

Description
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.

STIG	Date
UNIX SRG	2013-03-26

Details

Check Text ( C-27891r1_chk )
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 (F-24205r1_fix)
Edit /etc/ldap.conf and add or set the tls_checkpeer setting to yes.