Title

The system must not allow users to configure .forward files. (Cat II impact)

Discussion

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.

Check Content

The root role is required. # for dir in \ `logins -ox | awk -F: '($8 == "PS") { print $6 }'`; do ls -l ${dir}/.forward 2>/dev/null done If output is produced, this is a finding.

Fix Text

The root role is required. Remove any .forward files that are found. # pfexec rm [filename]

Additional Identifiers

Rule ID: SV-216433r603267_rule

Vulnerability ID: V-216433

Group Title: SRG-OS-000480

Expert Comments

CCIs tied to check.

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