UBTU-16-010820 - File systems that are being imported via Network File System (NFS) must be mounted to prevent files with the setuid and setguid bit set from being executed.

Information

The 'nosuid' mount option causes the system to not execute 'setuid' and 'setgid' files with owner privileges. This option must be used for mounting any file system not containing approved 'setuid' and 'setguid' files. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.

Solution

Configure the '/etc/fstab' to use the 'nosuid' option on file systems that are being imported via Network File System (NFS).

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_16-04_LTS_V2R3_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-215014r610931_rule, STIG-ID|UBTU-16-010820, STIG-Legacy|SV-90259, STIG-Legacy|V-75579, Vuln-ID|V-215014

Plugin: Unix

Control ID: 71634b353f9ef5a7b0f0fb02e222e17fa3d2191e5abdd9e9df8a4d66bb9cd600