Title

Audit logs on the AIX system must be group-owned by system. (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

Check the log files under the audit logging directory have correct group ownership. The default log file is /audit/trail. The log file can be set by the "trail" variable in /etc/security/audit/config. # grep trail /etc/security/audit/config trail = /audit/trail # ls -l <auditlog dir> total 240 -rw-rw---- 1 root system 0 Feb 23 08:44 bin1 -rw-rw---- 1 root system 0 Feb 23 08:44 bin2 -rw-r----- 1 root system 116273 Feb 23 08:44 trail If any file's group ownership is not "system", this is a finding.

Fix Text

Set the group of the audit log file to "system". # chgrp system <auditlog file>

Additional Identifiers

Rule ID: SV-215244r508663_rule

Vulnerability ID: V-215244

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.