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The services file must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22428 | GEN003790 | SV-37438r1_rule | ECLP-1 | Medium |
| Description |
|---|
| The services file is critical to the proper operation of network services and must be protected from unauthorized modification. If the services file has an extended ACL, it may be possible for unauthorized users to modify the file. Unauthorized modification could result in the failure of network services. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2013-01-17 |
Details
| Check Text ( C-36109r1_chk ) |
|---|
| Check the permissions of the /etc/services file. # ls -lL /etc/services 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-31356r1_fix) |
|---|
| Remove the extended ACL from the file. # setfacl --remove-all /etc/services |