Check: GEN001368
Title
The /etc/hosts file must have mode 0644 or less permissive. (Cat II impact)
Discussion
The /etc/hosts file (or equivalent) configures local host name to IP address mappings that 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.
Check Content
Check the mode of the /etc/hosts file. Procedure: # ls -l /etc/hosts If the file mode is more permissive than 0644, this is a finding.
Fix Text
Change the mode of the /etc/hosts file to 0644 or less permissive. # chmod 0644 /etc/hosts
Additional Identifiers
Rule ID:
Vulnerability ID: V-22325
Group Title:
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000225 |
The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions. |
Controls
Number | Title |
---|---|
AC-6 |
Least Privilege |