1.1.17 Set Sticky Bit on All World-Writable Directories

Information

Setting the sticky bit on world writable directories prevents users from deleting or renaming files in that directory that are not owned by them.

Rationale:

This feature prevents the ability to delete or rename files in world writable directories (such as /tmp) that are owned by another user.

Solution

Run the following command to set the sticky bit on all world writable directories:

# df --local -P | awk '{if (NR!=1) print $6}' | xargs -I '{}' find '{}' -xdev -type d ( -perm -0002 -a ! -perm -1000 ) 2>/dev/null | xargs -I '{}' chmod a+t '{}'

Default Value:

OS Default: N/A

See Also

https://workbench.cisecurity.org/files/3096

Item Details

Category: CONFIGURATION MANAGEMENT, SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|CM-6, 800-53|SC-7(10), CSCv7|5.1, CSCv7|13

Plugin: Unix

Control ID: 658f38bf0da81a8b69ac93423c6769c5f00f8b68ad1c3da89201863be8616161