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The .Xauthority files must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22446 | GEN005190 | SV-35167r1_rule | ECLP-1 | Medium |
| Description |
|---|
| .Xauthority files ensure the user is authorized to access the specific X Windows host. Extended ACLs may permit unauthorized modification of these files, which could lead to Denial of Service to authorized access or allow unauthorized access to be obtained. |
| STIG | Date |
|---|---|
| HP-UX 11.31 Security Technical Implementation Guide | 2017-12-08 |
Details
| Check Text ( C-36600r2_chk ) |
|---|
| Get a list of (non-system account) users and the associated home directories. # cat /etc/passwd | cut -f 1,6 -d ":" Check the file permissions for the user .Xauthority files. # ls -lLa / If the permissions include a "+", the file has an extended ACL, this is a finding. |
| Fix Text (F-31967r2_fix) |
|---|
| Remove the optional ACL from the file. # chacl -z / |