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The /etc/shadow (or equivalent) file must have mode 0400.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-800 | GEN001420 | SV-37368r1_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 |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2017-03-01 |
Details
| Check Text ( C-36056r1_chk ) |
|---|
| Check the mode of the /etc/shadow file. # ls -lL /etc/shadow If the /etc/shadow file has a mode more permissive than 0400, this is a finding. |
| Fix Text (F-31300r1_fix) |
|---|
| Change the mode of the /etc/shadow (or equivalent) file. # chmod 0400 /etc/shadow |