RHEL 9 must prevent special devices on file systems that are imported via Network File System (NFS).
An XCCDF Rule
Description
<VulnDiscussion>The "nodev" mount option causes the system to not interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-257854r991589_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Update each NFS mounted file system to use the "nodev" option on file systems that are being imported via NFS.