Title

TOSS audit log directory must be owned by group root to prevent unauthorized read access. (Cat II impact)

Discussion

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

Check Content

Verify the audit log directory is owned by group root. First, determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the directory where the audit log file is located, check if the directory is owned by group "root" with the following command: $ sudo ls -ld /var/log/audit/ drwx------. 2 root root 99 Jul 19 07:32 /var/log/audit/ If the audit log directory is not owned by group "root", this is a finding.

Fix Text

Configure the audit log directory to be protected from unauthorized read access, by setting the correct group as "root" with the following command: $ sudo chgrp root [audit_log_directory] Replace "[audit_log_directory]" to the correct audit log directory path, by default this location is "/var/log/audit/."

Additional Identifiers

Rule ID: SV-252982r958434_rule

Vulnerability ID: V-252982

Group Title: SRG-OS-000057-GPOS-00027

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.