SV-216475r959010: The limitpriv zone option must be set to the vendor default or less permissive. | Solaris 11 SPARC STIG SCAP Benchmark

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Assessment Title

Rule Text

The limitpriv zone option must be set to the vendor default or less permissive.

Description

Discussion Text

Solaris zones can be assigned privileges generally reserved for the global zone using the "limitpriv" zone option. Any privilege assignments in excess of the vendor defaults may provide the ability for a non-global zone to compromise the global zone.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000366SV-60767V-47895

References

DPMS Target Solaris 11 SPARC DISA DPMS Target Solaris 11 SPARC 4022

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.stig.solaris11:def:107
# The limitpriv zone option must be set to the vendor default or less permissive.
# 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:
#   - uname_object (uname_test) -- OS version is less than 11.4: no extractor for field "os_version"
#   - uname_object (uname_test) -- OS version is not less than 11.4: no extractor for field "os_version"
#   - xmlfilecontent_object (xmlfilecontent_test) -- Make sure that all the different zones on the system have their limitpriv attribute set to default.: <set> composition (base object oval:mil.disa.stig.solaris11:obj:10700): member unresolved -- cannot derive an existence probe for this object type

# /etc/zones/index does not exist
# file_object (file_test)
test_2() {
  ! ( test -e '/etc/zones/index' &>/dev/null )
}
# /etc/zones/index contains global
# textfilecontent54_object (textfilecontent54_test)
test_3() {
  grep -Pq '^global:' '/etc/zones/index' &>/dev/null
}
# /var/share/zones/index.json does not exist
# file_object (file_test)
test_5() {
  ! ( test -e '/var/share/zones/index.json' &>/dev/null )
}
# /var/share/zones/index.json does not contain 'path:/'
# textfilecontent54_object (textfilecontent54_test)
test_6() {
  ! ( grep -Pq '"path":\s+"/"' '/var/share/zones/index.json' &>/dev/null )
}

if ( ( test_2 || test_3 ) && ( test_5 || test_6 ) ); 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.stig.solaris11:def:107
if [ $(uname -r) = "11($|\\.[0-3]\\b)" ]; then
    if [ ! -f "/etc/zones/index" ]; then
        echo "PASS"
        exit 0
    fi
    if grep -q "^global:" /etc/zones/index && grep -q "instance: 1" /etc/zones/index; then
        if [ ! -f "/var/share/zones/index.json" ]; then
            echo "PASS"
            exit 0
        fi
        if ! grep -q "\"path\":\"/\"" /var/share/zones/index.json; then
            echo "PASS"
            exit 0
        fi
    fi
fi
echo "FAIL"
exit 1

Remediation

This check applies to the global zone only. Determine the zone that you are currently securing.

# zonename

If the command output is "global", this check applies.

The Zone Security profile is required:

Change the "limitpriv" setting to default. 

# pfexec zonecfg -z [zone] set limitpriv=default