The system must disable ICMP redirect messages.
An XCCDF Rule
Description
<VulnDiscussion>A malicious user can exploit the ability of the system to send ICMP redirects by continually sending packets to the system, forcing the system to respond with ICMP redirect messages, resulting in an adverse impact on the CPU performance of the system.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-216139r959010_rule
- Severity
- Low
- References
- Updated
Remediation - Manual Procedure
The Network Management profile is required.
If the version of Solaris is earlier than Solaris 11.2, disable send redirects for IPv4 and IPv6.
# pfexec ipadm set-prop -p _send_redirects=0 ipv4
# pfexec ipadm set-prop -p _send_redirects=0 ipv6