The system must disable TCP reverse IP source routing.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216140 | SOL-11.1-050100 | SV-216140r959010_rule | CCI-000366 | low |
| Description | ||||
| If enabled, reverse IP source routing would allow an attacker to more easily complete a three-way TCP handshake and spoof new connections. | ||||
| STIG | Date | |||
| Solaris 11 X86 Security Technical Implementation Guide | 2025-05-05 | |||
Details
Check Text (C-216140r959010_chk)
Determine if TCP reverse IP source routing is disabled.
# ipadm show-prop -p _rev_src_routes -co current tcp
If the output of this command is not "0", this is a finding.
Fix Text (F-17376r372803_fix)
The Network Management profile is required.
Disable reverse source routing.
# pfexec ipadm set-prop -p _rev_src_routes=0 tcp