Ensure audit tools are 555 or more restrictive

MediumLevel 2Automatedfreebsd

Description

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. Protecting audit information includes identifying and protecting the tools used to view and manipulate log data. Protecting audit tools is necessary to prevent unauthorized operation on audit information. Audit: automated read-only check derived from the CIS audit procedure; it prints "compliant" when the control is met.

How it is checked

Audit method: Shell command

shell

command -v stat >/dev/null 2>&1 || exit 1; out=$( { stat -Lf "%N %Lp" /usr/sbin/*audit* | grep -Ev -- "^[[:space:]]*[^[:space:]]+[[:space:]]+([0-5][0145][0145])[[:space:]]*$" ; } 2>/dev/null ); [ -z "$out" ] && echo compliant || printf '%s\n' "$out" | head -n 20

Expected output: compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Run the following command to remove more permissive mode from the audit tools: # chmod 555 /usr/sbin/*audit*

Properties

Operating systems: Any
Tags: freebsdaudit
Reference: CIS FreeBSD 14 Benchmark v1.0.1 - 5.2.4.8 Ensure audit tools are 555 or more restrictive

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell

tmaegis scan --target freebsd --level 2