The system must not respond to ICMPv4 echoes sent to a broadcast address.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22410 | GEN003603 | SV-26073r1_rule | ECSC-1 | Medium |
| Description |
|---|
| Responding to broadcast Internet Control Message Protocol (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks. |
| STIG | Date |
|---|---|
| UNIX SRG | 2013-03-26 |
Details
| Check Text ( C-29248r1_chk ) |
|---|
| Determine if the system is configured to respond to ICMP ECHO_REQUESTs sent to broadcast addresses. If so, this is a finding. |
| Fix Text (F-26267r1_fix) |
|---|
| Configure the system to ignore ICMP ECHO_REQUESTs sent to broadcast addresses. |