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.ubuntu2204os:def:260490
# Ubuntu 22.04 LTS must generate system journal entries without revealing information that could be exploited by adversaries.
# 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:
# - file_object (file_test) -- All files in /run/log/journal is mode 0640 or less permissive: no extractor for field "gexec"
# - file_object (file_test) -- All files in /var/log/journal is mode 0640 or less permissive: no extractor for field "gexec"
# Mode of /run/log/journal directory is 2750 or less permissive
# file_object (file_test)
test_1() {
( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,10,1)=="t" || substr($0,10,1)=="T")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,4,1)=="s" || substr($0,4,1)=="S")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,10,1)=="x" || substr($0,10,1)=="t")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,8,1)=="r")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,9,1)=="w")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/run/log/journal' | awk '{print (substr($0,6,1)=="w")?"true":"false"}') | grep -qxF 'false' )
}
# Mode of /var/log/journal directory is 2750 or less permissive
# file_object (file_test)
test_2() {
( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,10,1)=="t" || substr($0,10,1)=="T")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,4,1)=="s" || substr($0,4,1)=="S")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,10,1)=="x" || substr($0,10,1)=="t")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,8,1)=="r")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,9,1)=="w")?"true":"false"}') | grep -qxF 'false' ) && ( (stat -c '%A' '/var/log/journal' | awk '{print (substr($0,6,1)=="w")?"true":"false"}') | grep -qxF 'false' )
}
if ( test_1 && test_2 ); then
echo "PASS (automated portion only -- MANUAL REVIEW still required, see notes above)"
else
echo "FAIL (or see MANUAL REVIEW note above)"
fi Assessment Script Powered by AISandbox-executed
A standalone Shell script to assess this control automatically. Review before running it in your environment.
Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.
#!/bin/sh
# OVAL definition: oval:mil.disa.stig.ubuntu2204os:def:260490
if [ ! -d "/run/log/journal" ]; then echo "PASS"; exit 0; fi
if [ ! -d "/var/log/journal" ]; then echo "PASS"; exit 0; fi
if [ ! -w "$(stat -c "%a" "/run/log/journal")" ] && [ "$(stat -c "%a" "/run/log/journal")" -ge 2750 ]; then echo "PASS"; exit 0; fi
if [ ! -w "$(stat -c "%a" "/var/log/journal")" ] && [ "$(stat -c "%a" "/var/log/journal")" -ge 2750 ]; then echo "PASS"; exit 0; fi
for file in /run/log/journal/*; do
if [ ! -w "$(stat -c "%a" "$file")" ] && [ "$(stat -c "%a" "$file")" -ge 640 ]; then continue; else echo "FAIL"; exit 1; fi
done
for file in /var/log/journal/*; do
if [ ! -w "$(stat -c "%a" "$file")" ] && [ "$(stat -c "%a" "$file")" -ge 640 ]; then continue; else echo "FAIL"; exit 1; fi
done
echo "PASS"; exit 0