Check for Presence of User .forward Files

MediumLevel 1Automatedsolaris

Description

The .forward file specifies an email address to which a user's mail is forwarded. Use of the .forward file poses a security risk in that sensitive data may be inadvertently transferred outside the organization. The .forward file also poses a secondary risk as it can be used to execute commands that may perform unintended actions. 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 logins >/dev/null 2>&1 || exit 1; out=$( { for dir in $(logins -ox | awk -F: '($8 == "PS") { print $6 }'); do ls -l "$dir"/.forward; done ; } 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

Correct or justify any items discovered in the Audit step. Determine if any .forward files exist, and work with the owner to determine the best course of action in accordance with site policy.

Properties

Operating systems: Any
Tags: solarisaccounts
Reference: CIS Oracle Solaris 11.4 Benchmark v1.1.0 - 9.20 Check for Presence of User .forward Files

Check this host

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

shell

tmaegis scan --target solaris