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Files executed through a mail aliases file must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22441 | GEN004430 | SV-37496r1_rule | ECLP-1 | Medium |
| Description |
|---|
| Excessive permissions on files executed through a mail aliases file could result in modification by an unauthorized user, execution of malicious code, and/or system compromise. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2014-01-09 |
Details
| Check Text ( C-36153r1_chk ) |
|---|
| Examine the contents of the /etc/aliases file. Procedure: # more /etc/aliases Examine the aliases file for any utilized directories or paths. # ls -lL Check the permissions for any paths referenced. If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding. |
| Fix Text (F-31404r1_fix) |
|---|
| Remove the extended ACL from the file. # setfacl --remove-all |