InformationThe operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) authentication communications setting ldap_id_use_start_tls.
Without cryptographic integrity protections, information can be altered by unauthorized users without detection.
Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the key used to generate the hash.
SolutionConfigure the operating system to implement cryptography to protect the integrity of LDAP authentication sessions.
Add or modify the following line in /etc/sssd/sssd.conf:
Example: vim /etc/sssd/sssd.conf
Add, uncomment or update the following line:
ldap_id_use_start_tls = true
This Benchmark recommendation maps to:
Red Hat Enterprise Linux 7 Security Technical Implementation Guide:
Version 2, Release: 3 Benchmark Date: 26 Apr 2019
Vul ID: V-72227
Rule ID: SV-86851r3_rule
STIG ID: RHEL-07-040180
Severity: CAT II