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The system must not accept source-routed IPv6 packets.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22554 GEN007940 SV-38828r1_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 handling of source-routed traffic destined to the system itself, not to traffic forwarded by the system to another, such as when IPv6 forwarding is enabled and the system is functioning as a router.
STIG Date
Draft AIX Security Technical Implementation Guide 2011-08-17

Details

Check Text ( C-37080r1_chk )
# /usr/sbin/no –o ipsrcrouterecv
If the value returned is not 0, this is a finding.
Fix Text (F-32352r1_fix)
Configure the system to not accept source-routed IPv6 packets.
# /usr/sbin/no –p –o ipsrcrouterecv=0