SV-37692r1: The SNMP service must use only SNMPv3 or its successors. | Red Hat Enterprise Linux 5 Security Technical Implementation Guide

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Assessment Title

Rule Text

The SNMP service must use only SNMPv3 or its successors.

Description

Discussion Text

SNMP Versions 1 and 2 are not considered secure. Without the strong authentication and privacy provided by the SNMP Version 3 User-based Security Model (USM), an attacker or other unauthorized users may gain access to detailed system management information and use the information to launch attacks against the system.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001435

Additional Details

Responsibility

System Administrator

IA Controls

DCPP-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:316
# The SNMP service must use only SNMPv3 or its successors.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Checking for v1, v2c, community or com2sec references
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  ! ( grep -Pq '^[^#]*([Vv]1|[Vv]2[Cc]|[Cc][Oo][Mm][Mm][Uu][Nn][Ii][Tt][Yy]|[Cc][Oo][Mm]2[Ss][Ee][Cc])' '/etc/snmpd.conf' &>/dev/null )
}

if ! test_1; then
  echo "PASS"
else
  echo "FAIL"
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:316

if [ ! -f "/etc/snmpd.conf" ]; then echo "PASS"; exit 0; fi
if grep -q "^[^#]*([Vv]1|[Vv]2[Cc]|[Cc][Oo][Mm][Mm][Uu][Nn][Ii][Tt][Yy]|[Cc][Oo][Mm]2[Ss][Ee][Cc])" /etc/snmpd.conf ]; then echo "FAIL"; exit 1; fi
echo "PASS"
exit 0

Remediation

Edit /etc/snmpd.conf and remove references to the "v1", "v2c", "community", or "com2sec". 
Restart the SNMP service.
# service snmpd restart