The system must not respond to broadcast ICMP echo requests.
An XCCDF Rule
Description
ICMP echo requests can be useful for reconnaissance of systems and for denial of service attacks.
- ID
- SV-216372r959010_rule
- Version
- SOL-11.1-050050
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
The Network Management profile is required.
Disable respond to echo broadcast.
# pfexec ipadm set-prop -p _respond_to_echo_broadcast=0 ip