Detections
Analytics

GEN005900 - The nosuid option must be enabled on all NFS client mounts.

Information

Enabling the nosuid mount option prevents the system from granting owner or group-owner privileges to programs with the setuid or setgid bit set. If the system does not restrict this access, users with unprivileged access to the local system may be able to acquire privileged access by executing setuid or setgid files located on the mounted NFS file system.

Solution

Edit /etc/vfstab and add the nosuid option for all NFS file systems. Remount the NFS file systems to make the change take effect.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SOL_10_x86_V2R4_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-227922r603266_rule, STIG-ID|GEN005900, STIG-Legacy|SV-28452, STIG-Legacy|V-936, Vuln-ID|V-227922

Plugin: Unix

Control ID: 3fdee81f91e371dda36e1b3c8b43d2e677affc6da83149ade915e8b5f087a65d