The system must not respond to ICMP broadcast timestamp requests.
An XCCDF Rule
Description
<VulnDiscussion>By accurately determining the system's clock state, an attacker can more effectively attack certain time-based pseudorandom number generators (PRNGs) and the authentication systems that rely on them.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-216370r959010_rule
- Severity
- Low
- References
- Updated
Remediation - Manual Procedure
The Network Management profile is required.
Disable respond to timestamp broadcasts.
# pfexec ipadm set-prop -p _respond_to_timestamp_broadcast=0 ip