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The NFS exports configuration file must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22493 | GEN005770 | SV-26815r1_rule | ECLP-1 | Low |
| Description |
|---|
| File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. Excessive permissions on the NFS export configuration file could allow unauthorized modification of the file, which could result in Denial of Service to authorized NFS exports and the creation of additional unauthorized exports. |
| STIG | Date |
|---|---|
| SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2015-10-01 |
Details
| Check Text ( C-27803r1_chk ) |
|---|
| Check the group ownership of the NFS export configuration file. # ls -lL /etc/dfs/dfstab If the permissions include a "+", the file has an extended ACL and this is a finding. |
| Fix Text (F-24058r1_fix) |
|---|
| Remove the extended ACL from the file. # getfacl /etc/dfs/dfstab Remove each ACE returned. # setfacl -d [ACE] /etc/dfs/dfstab |