cyberstrikeus 2.2.5 Ensure LDAP client is not installed (Automated)
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.
Impact
Removing the LDAP client will prevent or inhibit using LDAP for authentication in your environment.
Audit Procedure
Command Line
Verify that ldap-utils is not installed. Use the following command to provide the needed information:
dpkg -s ldap-utils | grep -E '(Status:|not installed)'
Expected Result
dpkg-query: package 'ldap-utils' is not installed and no information is available
Remediation
Command Line
Uninstall ldap-utils:
apt purge ldap-utils
Default Value
ldap-utils is not installed on minimal server installations.
References
- CIS Controls v7 - 2.6 Address unapproved software
Profile
- Level 1 - Server
- Level 1 - Workstation