Skeleton files must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22357 | GEN001810 | SV-45134r1_rule | Medium |
| Description |
|---|
| If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files. |
| STIG | Date |
|---|---|
| SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide | 2018-09-19 |
Details
| Check Text ( C-42479r1_chk ) |
|---|
| Check skeleton files for extended ACLs: # ls -alL /etc/skel. 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-38530r1_fix) |
|---|
| Remove the extended ACL from the file. # setfacl --remove-all [skeleton file with extended ACL] or: # ls -lL /etc/skel|grep "\+ "|awk ‘{print “/etc/skel/”$9}’|xargs setfacl --remove-all will remove all ACLs from the files. |