2.3.5 Ensure LDAP client is not installed

Information

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.

Solution

Uninstall ldap-utils:

# apt purge ldap-utils

Additional Information:

The openldap-clients package can go by other names on some distributions. openldap2-client, and ldap-utils are known alternative package names.

See Also

https://workbench.cisecurity.org/files/2971

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-11, CSCv6|2, CSCv7|2.6

Plugin: Unix

Control ID: c3304f22c82099f2e039e9cda51acfba82e35091417427d35db0265e0ba13864