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XCCDF
Guide to the Secure Configuration of Oracle Linux 8
System Settings
File Permissions and Masks
Restrict Partition Mount Options
Add nosuid Option to Removable Media Partitions
Add nosuid Option to Removable Media Partitions
An XCCDF Rule
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Add nosuid Option to Removable Media Partitions
Medium Severity
The
nosuid
mount option prevents set-user-identifier (SUID) and set-group-identifier (SGID) permissions from taking effect. These permissions allow users to execute binaries with the same permissions as the owner and group of the file respectively. Users should not be allowed to introduce SUID and SGID files into the system via partitions mounted from removeable media. Add the
nosuid
option to the fourth column of
/etc/fstab
for the line which controls mounting of any removable media partitions.