The system must not respond to broadcast ICMP echo requests.
Overview
| Finding ID |
Version |
Rule ID |
IA Controls |
Severity |
| V-216135 |
SOL-11.1-050050 |
SV-216135r959010_rule |
|
Medium |
| Description |
| ICMP echo requests can be useful for reconnaissance of systems and for denial of service attacks. |
Details
| Check Text (C-17373r372787_chk) |
Determine if ICMP echo requests response is disabled.
# ipadm show-prop -p _respond_to_echo_broadcast -co current ip
If the output of this command is not "0", this is a finding. |
| Fix Text (F-17371r372788_fix) |
The Network Management profile is required.
Disable respond to echo broadcast.
# pfexec ipadm set-prop -p _respond_to_echo_broadcast=0 ip |