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The /etc/shadow file must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22340 | GEN001430 | SV-45006r1_rule | ECLP-1 | Medium |
| Description |
|---|
| The /etc/shadow file contains the list of local system accounts. It is vital to system security and must be protected from unauthorized modification. The file also contains password hashes which must not be accessible to users other than root. |
| STIG | Date |
|---|---|
| SUSE Linux Enterprise Server v11 for System z | 2015-01-26 |
Details
| Check Text ( C-42408r1_chk ) |
|---|
| Verify /etc/shadow has no extended ACL. # ls -l /etc/shadow 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-38421r1_fix) |
|---|
| Remove the extended ACL from the file. # setfacl --remove-all /etc/shadow |