Title

Amazon Linux 2023 audit tools must have a mode of "0755" or less permissive. (Cat II impact)

Discussion

Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators.

Check Content

Verify Amazon Linux 2023 audit tools have a mode of "0755" or less with the following command: $ stat -c "%a %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules 755 /sbin/auditctl 755 /sbin/aureport 755 /sbin/ausearch 750 /sbin/autrace 755 /sbin/auditd 755 /sbin/rsyslogd 755 /sbin/augenrules If any of the audit tool files have a mode more permissive than "0755", this is a finding.

Fix Text

Configure Amazon Linux 2023 audit tools to have a mode of "0755" by running the following command: $ sudo chmod 0755 [audit_tool] Replace "[audit_tool]" with each audit tool that has a more permissive mode than "0755".

Additional Identifiers

Rule ID: SV-274101r1120291_rule

Vulnerability ID: V-274101

Group Title: SRG-OS-000256-GPOS-00097

Expert Comments

CCIs tied to check.

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