2.4 Set noexec option for /tmp Partition

Information

The noexec mount option specifies that the filesystem cannot contain executable binaries. Since the /tmp filesystem is only intended for temporary file storage, set this option to ensure that users cannot run executable binaries from /tmp.

Solution

Edit the /etc/fstab file and add noexec to the fourth field (mounting options). See the fstab(5) manual page for more information. # mount -o remount,noexec /tmp

See Also

https://workbench.cisecurity.org/files/85

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6, CSCv6|3.1, CSCv7|5.1

Plugin: Unix

Control ID: 0b7719dbbf1a1d1c62647e5c14c3d61737e0ab07bf46de3a4f96941222d8aa08