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XCCDF
Red Hat Enterprise Linux 9 Security Technical Implementation Guide
SRG-OS-000480-GPOS-00227
RHEL 9 must use a reverse-path filter for IPv4 network traffic when possible by default.
RHEL 9 must use a reverse-path filter for IPv4 network traffic when possible by default.
An XCCDF Rule
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RHEL 9 must use a reverse-path filter for IPv4 network traffic when possible by default.
Medium Severity
<VulnDiscussion>Enabling reverse path filtering drops packets with source addresses that should not have been able to be received on the interface on which they were received. It must not be used on systems that are routers for complicated networks, but is helpful for end hosts and routers serving small networks.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>