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XCCDF
Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide
SRG-OS-000480-GPOS-00227
TOSS must not allow interfaces to perform Internet Control Message Protocol (ICMP) redirects by default.
TOSS must not allow interfaces to perform Internet Control Message Protocol (ICMP) redirects by default.
An XCCDF Rule
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TOSS must not allow interfaces to perform Internet Control Message Protocol (ICMP) redirects by default.
Medium Severity
<VulnDiscussion>ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table, possibly revealing portions of the network topology. There are notable differences between Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6). There is only a directive to disable sending of IPv4 redirected packets. Refer to RFC4294 for an explanation of "IPv6 Node Requirements", which resulted in this difference between IPv4 and IPv6.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>