The systems access control program must be configured to grant or deny system access to specific hosts.

From SUSE Linux Enterprise Server v11 for System z

Associated with: CCI-000366

SV-45931r1_rule The systems access control program must be configured to grant or deny system access to specific hosts.

Vulnerability discussion

If the system's access control program is not configured with appropriate rules for allowing and denying access to system network resources, services may be accessible to unauthorized hosts.

Check content

Check for the existence of the "/etc/hosts.allow" and "/etc/hosts.deny" files. Procedure: # ls -la /etc/hosts.allow # ls -la /etc/hosts.deny If either file does not exist, this is a finding. Check for the presence of a "default deny" entry. Procedure: # grep "ALL: ALL" /etc/hosts.deny If the "ALL: ALL" entry is not present the "/etc/hosts.deny" file, any TCP service from a host or network not matching other rules will be allowed access. If the entry is not in "/etc/hosts.deny", this is a finding.

Fix text

Edit the "/etc/hosts.allow" and "/etc/hosts.deny" files to configure access restrictions.

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