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The alias file must not have an extended ACL.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22439 GEN004390 SV-38372r1_rule ECLP-1 Medium
Description
Excessive permissions on the aliases file may permit unauthorized modification. If the alias file is modified by an unauthorized user, they may modify the file to run malicious code or redirect e-mail.
STIG Date
HP-UX 11.31 Security Technical Implementation Guide 2018-09-14

Details

Check Text ( C-36559r1_chk )
Check the permissions of the /etc/mail/aliases file.
# ls -lL /etc/mail/aliases

If the permissions include a "+", the file has an extended ACL, this is a finding.
Fix Text (F-31927r1_fix)
Remove the optional ACL from the file.
# chacl -z /etc/mail/aliases