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If the system is using LDAP for authentication or account information, the system must use a TLS connection using FIPS 140-2 approved cryptographic algorithms.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22555 GEN007980 SV-45996r1_rule Medium
Description
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 protection.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-43279r1_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.
Check if NSS LDAP is using TLS.
# grep '^ssl start_tls' /etc/ldap.conf
If no lines are returned, this is a finding.
Check if NSS LDAP TLS is using only FIPS 140-2 approved cryptographic algorithms.
# grep '^tls_ciphers' /etc/ldap.conf
If the line is not present, or contains ciphers not approved by FIPS 140-2, this is a finding.
Fix Text (F-39362r1_fix)
Edit "/etc/ldap.conf" and add a "ssl start_tls" and "tls_ciphers" options with only FIPS 140-2 approved ciphers.