1.205 OL09-00-002011

Information

OL 9 must prevent special devices on file systems that are imported via Network File System (NFS).

GROUP ID: V-271641
RULE ID: SV-271641r1091635

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.

Solution

Update each NFS mounted file system to use the "nodev" option on file systems that are being imported via NFS.

See Also

https://workbench.cisecurity.org/benchmarks/27024