The system must not respond to ICMPv6 echo requests sent to a broadcast address.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN007950

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-38829r1_rule The system must not respond to ICMPv6 echo requests sent to a broadcast address.

Vulnerability discussion

Responding to broadcast ICMP echo requests facilitates network mapping and provides a vector for amplification attacks.

Check content

# /usr/sbin/no -o bcastping If the value returned is not 0, this is a finding.

Fix text

Configure the system to not respond to IPv6 multicast ICMP ECHO_REQUESTs. # /usr/sbin/no -p -o bcastping=0

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