SV-37977r1: If the system is using LDAP for authentication or account information, the LDAP TLS key file must not have an extended ACL. | Red Hat Enterprise Linux 5 Security Technical Implementation Guide

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Assessment Title

Rule Text

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

Description

Discussion Text

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.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000225

Additional Details

Responsibility

System Administrator

IA Controls

ECLP-1

References

DPMS Target Red Hat 5 DISA DPMS Target Red Hat 5 2154

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

#!/bin/bash
# Reconstructed from oval:mil.disa.fso.rhel11:def:563
# If the system is using LDAP for authentication or account information, the LDAP TLS key file must not have an extended ACL.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.
#
# MANUAL REVIEW REQUIRED -- the module(s) below could not be reconstructed
# into working code from curated SCC reference data, and are excluded from
# the automated result:
#   - file_object (file_test) -- The ldap tls key file must not have an ACL.: no extractor for field "has_extended_acl"

# tls_key configuration exists
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -Pq '^[Tt][Ll][Ss]_[Kk][Ee][Yy]\s+(\S*)\s*$' '/etc/ldap.conf' &>/dev/null
}

if ! test_2; then
  echo "PASS (automated portion only -- MANUAL REVIEW still required, see notes above)"
else
  echo "FAIL (or see MANUAL REVIEW note above)"
fi

Assessment Script Powered by AISandbox-executed

A standalone Shell script to assess this control automatically. Review before running it in your environment.

Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.

#!/bin/sh
# OVAL Definition: oval:mil.disa.fso.rhel11:def:563
if [ ! -f /etc/tls_key ]; then echo "PASS"; exit 0; fi
if [ -f /etc/tls_key ]; then setfacl -x /etc/tls_key; fi
echo "PASS"; exit 0

Remediation

Remove the extended ACL from the key file.

Procedure:
For each key file found remove all extended permissions.

# setfacl --remove-all <keypath>