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The system must not forward IPv6 source-routed packets.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22553 GEN007920 SV-38827r1_rule ECSC-1 Medium
Description
Source-routed packets allow the source of the packet to suggest routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv6 forwarding is enabled and the system is functioning as a router.
STIG Date
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE 2018-09-18

Details

Check Text ( C-37079r1_chk )
# /usr/sbin/no -o ip6srcrouteforward
If the value returned is not 0, this is a finding.
Fix Text (F-32350r1_fix)
Configure the system so it does not forward IPv6 source-routed packets.
# /usr/sbin/no -p -o ip6srcrouteforward=0