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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-26710r1_rule | ECLP-1 | Medium |
| Description |
|---|
| .Xauthority files ensure the user is authorized to access that 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 |
|---|---|
| SOLARIS 9 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2015-10-01 |
Details
| Check Text ( C-27716r1_chk ) |
|---|
| Check the file permissions for the .Xauthority files. # ls -lL .Xauthority If the permissions include a "+", the file has an extended ACL and this is a finding. |
| Fix Text (F-23951r1_fix) |
|---|
| Remove the extended ACL from the file. # getfacl .Xauthority Remove each ACE returned. # setfacl -d [ACE] .Xauthority |