SV-37867r1: The system must not run Samba unless needed. | Red Hat Enterprise Linux 5 Security Technical Implementation Guide

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Assessment Title

Rule Text

The system must not run Samba unless needed.

Description

Discussion Text

Samba is a tool used for the sharing of files and printers between Windows and UNIX operating systems. It provides access to sensitive files and, therefore, poses a security risk if compromised.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001436

Additional Details

Responsibility

System Administrator

IA Controls

ECSC-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:375
# The system must not run Samba unless needed.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# samba not running
# process_object (process_test)
test_1() {
  ! ( ps -e -o comm= | grep -Pq '[^ ]*smbd.*' &>/dev/null )
}

if test_1; then
  echo "PASS"
else
  echo "FAIL"
fi

Remediation

If there is no functional need for Samba and the daemon is running, disable the daemon by killing the process ID as noted from the output of ps -ef |grep smbd. The samba package should also be removed or not installed if there is no functional requirement.

Procedure:
rpm -qa |grep samba

This will show whether "samba" or "samba3x" is installed. To remove:

rpm --erase samba
or
rpm --erase samba3x