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The /etc/hosts file must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22326 | GEN001369 | SV-26414r1_rule | ECLP-1 | Medium |
| Description |
|---|
| The /etc/hosts file (or equivalent) configures local host name to IP address mappings typically taking precedence over DNS resolution. If this file is maliciously modified, it could cause the failure or compromise of security functions requiring name resolution, which may include time synchronization, centralized authentication, and remote system logging. |
| STIG | Date |
|---|---|
| SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2015-10-01 |
Details
| Check Text ( C-27495r2_chk ) |
|---|
| Verify /etc/hosts has no extended ACL. # ls -lL /etc/hosts If the permissions include a "+", the file has an extended ACL and this is a finding. |
| Fix Text (F-23601r1_fix) |
|---|
| Remove the extended ACL from the file. # getfacl /etc/hosts Remove each ACE returned. # setfacl -d [ACE] /etc/hosts |