Detections
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1.211 ALMA-09-026750

Information

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

GROUP ID: V-269316
RULE ID: SV-269316r1050198

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 nonprivileged users to attain unauthorized administrative access.

Solution

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

See Also

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

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7(2), CCI|CCI-001764, Rule-ID|SV-269316r1050198_rule, STIG-ID|ALMA-09-026750, Vuln-ID|V-269316

Plugin: Unix

Control ID: 59e45e1fe27b6420548bd2e38782c32c847969b9fc7f1ef79fc0f4111e1857c0