SV-26611r1: The kernel core dump data directory must be group-owned by root, bin, sys, or other. | HP-UX 11.23 Security Technical Implementation Guide

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Assessment Title

Rule Text

The kernel core dump data directory must be group-owned by root, bin, sys, or other.

Description

Discussion Text

Kernel core dumps may contain the full contents of system memory at the time of the crash. As the system memory may contain sensitive information, it must be protected accordingly. If the kernel core dump data directory is not group-owned by a system group, the core dumps contained in the directory may be subject to unauthorized access.

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 HP-UX 11.23 DISA DPMS Target HP-UX 11.23 2170

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.hpux11:def:206
# The kernel core dump data directory must be group-owned by root, bin, sys, or other.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Test group of /var/adm/crash is root
# file_object (file_test)
test_1() {
  [ "$(stat -c '%g' '/var/adm/crash')" -eq 0 ]
}
# Test existence of group bin
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -Pq '^bin:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /var/adm/crash is bin
# file_object (file_test)
test_3() {
  [ "$(stat -c '%g' '/var/adm/crash')" = "$(sed -En 's/^bin:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group sys
# textfilecontent54_object (textfilecontent54_test)
test_4() {
  grep -Pq '^sys:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /var/adm/crash is sys
# file_object (file_test)
test_5() {
  [ "$(stat -c '%g' '/var/adm/crash')" = "$(sed -En 's/^sys:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}
# Test existence of group other
# textfilecontent54_object (textfilecontent54_test)
test_6() {
  grep -Pq '^other:[^:]*:([0-9]+):' '/etc/group' &>/dev/null
}
# Test group of /var/adm/crash is other
# file_object (file_test)
test_7() {
  [ "$(stat -c '%g' '/var/adm/crash')" = "$(sed -En 's/^other:[^:]*:([0-9]+):/\1/p' '/etc/group')" ]
}

if ( test_1 || ( test_2 && test_3 ) || ( test_4 && test_5 ) || ( test_6 && test_7 ) ); 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.hpux11:def:206

if [ -d "/var/adm/crash" ]; then
    if [ $(stat -c "%G" /var/adm/crash) = "root" ]; then
        echo "PASS"
        exit 0
    elif [ $(grep -E "^bin:[^:]*:" /etc/group | wc -l) -gt 0 ] && [ $(stat -c "%G" /var/adm/crash) = "$(grep -oE 'bin:[^:]*:[0-9]+' /etc/group | cut -d: -f3)" ]; then
        echo "PASS"
        exit 0
    elif [ $(grep -E "^sys:[^:]*:" /etc/group | wc -l) -gt 0 ] && [ $(stat -c "%G" /var/adm/crash) = "$(grep -oE 'sys:[^:]*:[0-9]+' /etc/group | cut -d: -f3)" ]; then
        echo "PASS"
        exit 0
    fi
fi
echo "FAIL"
exit 1

Remediation

Change the group-owner of the kernel core dump data directory.
# chgrp root /var/adm/crash