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1.1.15 Ensure nosuid option set on /run/shm partition

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Information

The nosuid mount option specifies that the filesystem cannot contain setuid files. Setting this option on a file system prevents users from introducing privileged programs onto the system and allowing non-root users to execute them.

Solution

Edit the /etc/fstab file and add nosuid to the fourth field (mounting options) for the /run/shm partition. See the fstab(5) manual page for more information. Run the following command to remount /run/shm: # mount -o remount,nosuid /run/shm

See Also

https://benchmarks.cisecurity.org/tools2/linux/CIS_Ubuntu_Linux_14.04_LTS_Benchmark_v2.0.0.pdf

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-6

Plugin: Unix

Control ID: e273dce2f963c5587a4d9b73b750606a9ad1988a8e57e01008a386679b4d7caf