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Check: GEN001364

SUSE Linux Enterprise Server v11 for System z STIG: GEN001364 (in versions v1 r12 through v1 r9)

Title

The /etc/resolv.conf file must have mode 0644 or less permissive. (Cat II impact)

Discussion

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.

Check Content

Check the mode of the /etc/resolv.conf file. # ls -l /etc/resolv.conf If the file mode is not 0644, this is a finding.

Fix Text

Change the mode of the /etc/resolv.conf file to 0644. # chmod 0644 /etc/resolv.conf

Additional Identifiers

Rule ID: SV-44976r1_rule

Vulnerability ID: V-22321

Group Title: GEN001364

Expert Comments

Expert comments are only available to logged-in users.

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