1.1.7 Ensure noexec option set on /dev/shm partition - fstab

Information

The noexec mount option specifies that the filesystem cannot contain executable binaries.

Rationale:

Setting this option on a file system prevents users from executing programs from shared memory. This deters users from introducing potentially malicious software on the system.

Solution

Edit the /etc/fstab file and add noexec to the fourth field (mounting options) for the /dev/shm partition. See the fstab(5) manual page for more information.
Run the following command to remount /dev/shm:

# mount -o remount,noexec,nodev,nosuid /dev/shm

See Also

https://workbench.cisecurity.org/files/3636

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7(2), CCI|CCI-001764, CSCv6|3.1, CSCv7|14.6, Rule-ID|SV-204486r603261_rule, STIG-ID|RHEL-07-021024

Plugin: Unix

Control ID: 099726463e1cf5255d7635ab3672a0c1ec81d57e50e6f2dc0f31f39afb2a3365