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The system must not send IPv4 ICMP redirects.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22417 | GEN003610 | SV-26632r1_rule | ECSC-1 | Medium |
| Description |
|---|
| ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table that could reveal portions of the network topology. |
| STIG | Date |
|---|---|
| Solaris 9 X86 Security Technical Implementation Guide | 2013-07-02 |
Details
| Check Text ( C-27669r1_chk ) |
|---|
| Verify the system does not send IPv4 ICMP redirect messages. Procedure: # ndd /dev/ip ip_send_redirects If the result is not 0, this is a finding. |
| Fix Text (F-23875r1_fix) |
|---|
| Configure the system to not send IPv4 ICMP redirect messages. Procedure: # ndd -set /dev/ip ip_send_redirects 0 Also add this command to a system startup script. |