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All shell files must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22366 | GEN002230 M6 | SV-38098r1_rule | ECLP-1 | Medium |
| Description |
|---|
| Shells with world/group-write permissions give the ability to maliciously modify the shell to obtain unauthorized access. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide | 2012-01-30 |
Details
| Check Text ( C-37636r1_chk ) |
|---|
| Open a terminal session and enter the following command to view extended ACLs. cat /etc/shells | xargs -n1 ls -lL 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-32877r1_fix) |
|---|
| Open a terminal session and use the following command to remove the extended ACLs. chmod -N |