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XCCDF
VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide
SRG-OS-000480-GPOS-00227
The Photon operating system must enable hardlink access control protection in the kernel.
The Photon operating system must enable hardlink access control protection in the kernel.
An XCCDF Rule
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The Photon operating system must enable hardlink access control protection in the kernel.
Medium Severity
<VulnDiscussion>By enabling the fs.protected_hardlinks kernel parameter, users can no longer create soft or hard links to files they do not own. Disallowing such hardlinks mitigate vulnerabilities based on insecure file system accessed by privileged programs, avoiding an exploitation vector exploiting unsafe use of open() or creat().</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>