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The Network File System (NFS) server must be configured to restrict file system access to local hosts.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-933 | GEN005840 | SV-37857r1_rule | ECSC-1 | Medium |
| Description |
|---|
| The NFS access option limits user access to the specified level. This assists in protecting exported file systems. If access is not restricted, unauthorized hosts may be able to access the system's NFS exports. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2013-04-10 |
Details
| Check Text ( C-37061r1_chk ) |
|---|
| Check the permissions on exported NFS file systems. Procedure: # exportfs -v If the exported file systems do not contain the 'rw' or 'ro' options specifying a list of hosts or networks, this is a finding. |
| Fix Text (F-32328r1_fix) |
|---|
| Edit /etc/exports and add ro and/or rw options (as appropriate) specifying a list of hosts or networks which are permitted access. Re-export the file systems. |