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Check: GEN001369

IRIX 6.5: GEN001369 (in versions v1 r1 through v1 r0.6)

Title

The /etc/hosts file must not have an extended ACL. (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

Verify /etc/hosts has no extended ACL. # ls -D /etc/hosts If the file has an extended ACL, this is a finding.

Fix Text

Remove the extended ACL from the file. # chmod A- /etc/hosts

Additional Identifiers

Rule ID:

Vulnerability ID: V-22326

Group Title:

Expert Comments

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CCIs

CCIs tied to check.

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

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege