If the system is using LDAP for authentication or account information, the LDAP TLS key file must not have an extended ACL.

From Oracle Linux 5 Security Technical Implementation Guide

Part of GEN008360

Associated with: CCI-000225

SV-63213r1_rule If the system is using LDAP for authentication or account information, the LDAP TLS key file must not have an extended ACL.

Vulnerability discussion

LDAP can be used to provide user authentication and account information, which are vital to system security. The LDAP client configuration must be protected from unauthorized modification.

Check content

Determine the key file. # grep -i '^tls_key' /etc/ldap.conf Check the permissions. # ls -lL If the permissions of the file contains a '+', an extended ACL is present. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix text

Remove the extended ACL from the key file. Procedure: For each key file found remove all extended permissions. # setfacl --remove-all

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