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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 M6 | SV-38086r1_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, such as time synchronization, centralized authentication, and remote system logging. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide | 2013-04-09 |
Details
| Check Text ( C-37622r1_chk ) |
|---|
| Open a terminal session and enter the following command to view the /etc/hosts file extended ACLs. ls -lL /etc/hosts If the permissions include a '+', the file has an extended ACL, this is a finding. |
| Fix Text (F-32864r1_fix) |
|---|
| Open a terminal session and enter the following command to remove the extended ACLs. chmod -N /etc/hosts |