1.210 ALMA-09-026640

Information

AlmaLinux OS 9 must mount /dev/shm with the noexec option.

GROUP ID: V-269315
RULE ID: SV-269315r1050197

The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files, as they may be incompatible.

Executing files from untrusted file systems increases the opportunity for nonprivileged users to attain unauthorized administrative access.

Solution

Modify "/etc/fstab" to use the "noexec" option on the "/dev/shm" file system.

See Also

https://workbench.cisecurity.org/benchmarks/27039