SV-252979r958434: TOSS audit logs must be owned by user root to prevent unauthorized read access. | Tri-Lab Operating System Stack (TOSS) 4 STIG SCAP Benchmark

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Assessment Title

Rule Text

TOSS audit logs must be owned by user root to prevent unauthorized read access.

Description

Discussion Text

Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029

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

IA Controls

NIST SP 800-53

Not mappedCCI-000162Not mappedCCI-000163Not mappedCCI-000164

References

DPMS Target TOSS 4 DISA DPMS Target TOSS 4 5469

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.toss4os:def:252979
# TOSS audit logs must be owned by user root to prevent unauthorized read access.
# 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) -- audit logs are owned by root: no extractor for field "user_id"

echo "MANUAL REVIEW REQUIRED -- see notes above; no part of this check could be automated"

Remediation

Configure the audit log and audit log directory to be protected from unauthorized read access, by setting the correct owner as "root" with the following command:

$ sudo chown root [audit_log_file]

Replace "[audit_log_file]" to the correct audit log path, by default this location is "/var/log/audit/audit.log."

Configure the audit log to be owned by root by configuring the log group in the /etc/audit/auditd.conf file:

log_group = root