2.3.5 Ensure LDAP client is not installed (Scored)
Profile Applicability
Level 1 - Server Level 1 - Workstation
Description
The Lightweight Directory Access Protocol (LDAP) was introduced as a replacement for NIS/YP. It is a service that provides a method for looking up information from a central database.
Rationale
If the system will not need to act as an LDAP client, it is recommended that the software be removed to reduce the potential attack surface..
Audit
Run the following commands to verify ldap-utils is not installed:
dpkg -s ldap-utils
Remediation
Run the following command to uninstall ldap-utils:
apt-get remove ldap-utils
Impact
Removing the LDAP client will prevent or inhibit using LDAP for authentication in your environment.