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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-38286r1_rule ECLP-1 Medium
Description
The /etc/hosts file (or equivalent) configures local host name to IP address mappings typically take 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
HP-UX 11.23 Security Technical Implementation Guide 2015-12-02

Details

Check Text ( C-36325r1_chk )
Verify /etc/hosts has no extended ACL.
# ls -lL /etc/hosts

If the permissions include a "+", the file has an extended ACL, this is a finding.
Fix Text (F-31580r1_fix)
Remove the optional ACL from the file.
# chacl -z /etc/hosts