SV-220065r603265: The system's access control program must be configured to grant or deny system access to specific hosts. | Solaris 10 SPARC STIG SCAP Benchmark

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Assessment Title

Rule Text

The system's access control program must be configured to grant or deny system access to specific hosts.

Description

Discussion Text

If the system's access control program is not configured with appropriate rules for allowing and denying access to system network resources, services may be accessible to unauthorized hosts.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-41532V-12030

References

DPMS Target Solaris 10 SPARC DISA DPMS Target Solaris 10 SPARC 4060

Checks

DISA STIG (Manual Reference)

Check for the existence of the /etc/hosts.allow and /etc/hosts.deny files.

Procedure:
# ls -la /etc/hosts.allow
# ls -la /etc/hosts.deny

If either file does not exist, this is a finding.

Check for the presence of a default deny entry.

Procedure:
# grep "ALL: ALL" /etc/hosts.deny

If the "ALL: ALL" entry is not present in the /etc/hosts.deny file, any TCP service from a host or network not matching other rules will be allowed access.  If the entry is not in /etc/hosts.deny, this is a finding.

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.solaris11:def:381
# The system's access control program must be configured to grant or deny system access to specific hosts.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# /etc/hosts.allow must exist
# file_object (file_test)
test_1() {
  test -e '/etc/hosts.allow' &>/dev/null
}
# /etc/hosts.deny must exist
# file_object (file_test)
test_2() {
  test -e '/etc/hosts.deny' &>/dev/null
}
# ALL: ALL must exist in /etc/hosts.deny
# textfilecontent54_object (textfilecontent54_test)
test_3() {
  grep -Pq '^ALL:[ 	]*ALL$' '/etc/hosts.deny' &>/dev/null
}

if ( test_1 && test_2 && test_3 ); 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
# DISA STIG / SCAP compliance check: oval:mil.disa.fso.solaris11:def:381

if [ ! -f "/etc/hosts.allow" ]; then echo "FAIL"; exit 1; fi
if [ ! -f "/etc/hosts.deny" ]; then echo "FAIL"; exit 1; fi
if ! grep -q "^ALL:[ \t]*ALL$" /etc/hosts.deny; then echo "FAIL"; exit 1; fi
echo "PASS"; exit 0

Remediation

Edit the /etc/hosts.allow and /etc/hosts.deny files to configure access restrictions.