Detections
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SOL-11.1-050370 - The system must prevent local applications from generating source-routed packets.

Information

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.

Solution

The root role is required.

# pfedit /etc/ipf/ipf.conf

For Solaris 11, 11.1, 11.2, and 11.3 that use IP Filter dd rules to block outgoing source-routed packets, such as:

block out log quick all with opt lsrr
block out log quick all with opt ssrr

Reload the IPF rules.

# ipf -Fa -A -f /etc/ipf/ipf.conf

For Solaris 11.3 or newer that use Packet Filter remove or modify any rules that include "allow-opts".

Reload the Packet Filter rules:
# svcadm refresh firewall:default

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SOL_11_x86_V3R6_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|III, CCI|CCI-000366, Rule-ID|SV-216157r959010_rule, STIG-ID|SOL-11.1-050370, STIG-Legacy|SV-61085, STIG-Legacy|V-48213, Vuln-ID|V-216157

Plugin: Unix

Control ID: 50c5d6abbadd2cfb0c44bfd65ba194fca7b066e3d8768b5e0927e475964cf35c