The system must not respond to multicast echo requests.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| low | V-216136 | SRG-OS-000480 | SOL-11.1-050060 | SV-216136r959010_rule | 2024-11-25 | 3 |
| Description |
|---|
| Multicast echo requests can be useful for reconnaissance of systems and for denial of service attacks. |
| ℹ️ Check |
|---|
| Determine if response to multicast echo requests is disabled. # ipadm show-prop -p _respond_to_echo_multicast -co current ipv4 # ipadm show-prop -p _respond_to_echo_multicast -co current ipv6 If the output of all commands is not "0", this is a finding. |
| ✔️ Fix |
|---|
| The Network Management profile is required. Disable respond to echo multi-cast for IPv4 and IPv6. # pfexec ipadm set-prop -p _respond_to_echo_multicast=0 ipv4 # pfexec ipadm set-prop -p _respond_to_echo_multicast=0 ipv6 |