Proxy ARP must not be enabled on the system.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with: CCI-001551

SV-29603r2_rule Proxy ARP must not be enabled on the system.

Vulnerability discussion

Proxy ARP allows a system to respond to ARP requests on one interface on behalf of hosts connected to another interface. If this function is enabled when not required, addressing information may be leaked between the attached network segments.

Check content

Determine if the system has non-local published ARP entries. Procedure: # arp -a If any entries have the flag P and no flag L, they are non-local published entries, and this is a finding.

Fix text

Remove non-local published ARP entries from the system. Procedure: # arp -d Check system initialization files for any commands creating published ARP entries (such as "arp -s pub" or "arp -f") and removing them.

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