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Proxy Address Resolution Protocol (ARP) must not be enabled on the system.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22415 GEN003608 SV-29602r1_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
HP-UX 11.23 Security Technical Implementation Guide 2015-12-02

Details

Check Text ( C-36506r1_chk )
Check the system for non-local published ARP entries.
# arp -a[n]

If any entries are listed as published, this is a finding.
Fix Text (F-31864r1_fix)
Remove any non-local published ARP entries.
# arp -d

Check system initialization scripts for any commands configuring published ARP entries (such as "arp -s pub") and remove them.

# grep -n "arp \-s" /sbin/init.d/*