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


Overview

Finding ID Version Rule ID IA Controls Severity
V-22412 GEN003605 SV-26626r1_rule ECSC-1 Medium
Description
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures.
STIG Date
Solaris 9 SPARC Security Technical Implementation Guide 2013-01-10

Details

Check Text ( C-27663r1_chk )
Verify the system does not apply reversed source routing to TCP responses.
# ndd /dev/tcp tcp_rev_src_routes
If the result is not 0, this is a finding.
Fix Text (F-23868r1_fix)
Configure the system to not apply reversed source routing to TCP responses.
# ndd -set /dev/tcp tcp_rev_src_routes 0
Also add this command to a system startup script.