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The /etc/resolv.conf file must not have an extended ACL.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22322 | GEN001365 M6 | SV-38081r1_rule | ECLP-1 | Medium |
| Description |
|---|
| The resolv.conf (or equivalent) file configures the system's DNS resolver. DNS is used to resolve host names to IP addresses. If DNS configuration is modified maliciously, host name resolution may fail or return incorrect information. DNS may be used by a variety of system security functions, such as time synchronization, centralized authentication, and remote system logging. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide Draft | 2013-01-10 |
Details
| Check Text ( C-37618r1_chk ) |
|---|
| Open a terminal session and enter the following command to view the resolv.conf file extended ACLs. ls -lL /etc/resolv.conf If the permissions include a '+', the file has an extended ACL, this is a finding. |
| Fix Text (F-32860r1_fix) |
|---|
| Open a terminal session and enter the following command to remove the extended ACLs. chmod -N /etc/resolv.conf |