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Proxy ARP must not be enabled on the system.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22415 GEN003608 SV-29603r1_rule ECSC-1 Medium
Description
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.
STIG Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE 2015-10-01

Details

Check Text ( C-30044r1_chk )
Determine if the system has non-local published ARP entries.

Procedure:
# arp -a

If any entries have the flag P, they are non-local published entries, and this is a finding.
Fix Text (F-26878r1_fix)
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.