The alias file must be owned by root.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-831 | GEN004360 | SV-37472r2_rule | ECLP-1 | Medium |
| Description |
|---|
| If the alias file is not owned by root, an unauthorized user may modify the file adding aliases to run malicious code or redirect e-mail. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2014-07-02 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-31384r1_fix) |
|---|
| Change the owner of the /etc/aliases file to root. Procedure: for sendmail: # chown root /etc/aliases # chown root /etc/aliases.db for postfix # chown root /etc/postfix/aliases # chown root /etc/postfix/aliases.db |