The system must not apply reversed source routing to TCP responses.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with: CCI-001551

SV-38799r2_rule The system must not apply reversed source routing to TCP responses.

Vulnerability discussion

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.

Check content

Determine if the system is configured to apply reverse source routing to TCP responses to source-routed packets. # /usr/sbin/no -o nonlocsrcroute If the value is not 0, this is a finding.

Fix text

Configure the system to not apply reverse source routing to TCP responses to source-routed packets. # /usr/sbin/no -po nonlocsrcroute=0

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