The system must not respond to broadcast ICMP echo requests.
An XCCDF Rule
Description
<VulnDiscussion>ICMP echo requests can be useful for reconnaissance of systems and for denial of service attacks.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-216135r603268_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
The Network Management profile is required.
Disable respond to echo broadcast.
# pfexec ipadm set-prop -p _respond_to_echo_broadcast=0 ip