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UBTU-22-653045 Ubuntu 22.04 LTS must be configured so that audit log files are not read- or write-accessible by unauthorized users.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to AU-9 via CCI-000162, CCI-000163

Title

Ubuntu 22.04 LTS must be configured so that audit log files are not read- or write-accessible by unauthorized users.

Control

Verify that the audit log files have a mode of "600" or less permissive. Determine where the audit logs are stored by using the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the path of the directory containing the audit logs, determine if the audit log files have a mode of "600" or less by using the following command: $ sudo stat -c "%n %a" /var/log/audit/* /var/log/audit/audit.log 600 If the audit log files have a mode more permissive than "600", this is a finding.

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

Related controls

CCI-000162, CCI-000163

Fix

Configure the audit log files to have a mode of "600" or less permissive. Using the path of the directory containing the audit logs, configure the audit log files to have a mode of "600" or less permissive by using the following command: $ sudo chmod 600 /var/log/audit/*