The alias file must be owned by root.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-227837 | GEN004360 | SV-227837r603266_rule | Medium |
| Description |
|---|
| If the alias file is not owned by root, an unauthorized user may modify the file to add aliases to run malicious code or redirect email. |
| STIG | Date |
|---|---|
| Solaris 10 X86 Security Technical Implementation Guide | 2020-12-04 |
Details
| Check Text ( C-29999r489883_chk ) |
|---|
| Find the alias file on the system. Procedure: # egrep '^O(A| AliasFile)' /etc/mail/sendmail.cf If the "alias file" is an NIS or LDAP map, this check is not applicable. The default location is /etc/mail/aliases. Check the ownership of the alias file. Procedure: # ls -lL If the alias file is not owned by root, this is a finding. |
| Fix Text (F-29987r489884_fix) |
|---|
| Change the owner of the /etc/mail/aliases file (or equivalent, such as /usr/lib/aliases) to root. Procedure: # chown root /etc/mail/aliases |