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V-271644

CAT II (Medium)

OL 9 must prevent code from being executed on file systems that are used with removable media.

Rule ID

SV-271644r1091644_rule

STIG

Oracle Linux 9 Security Technical Implementation Guide

Version

V1R5

CCIs

CCI-000366

Discussion

The "noexec" mount option causes the system not to 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.

Check Content

Verify that OL 9 file systems that are used for removable media are mounted with the "noexec" option with the following command:

$ more /etc/fstab
UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0

If a file system found in "/etc/fstab" refers to removable media and it does not have the "noexec" option set, this is a finding.

Fix Text

Configure the "/etc/fstab" to use the "noexec" option on file systems that are associated with removable media.