Run control scripts must not execute world writable programs or scripts.

World writable files could be modified accidentally or maliciously to compromise system integrity.

Check the permissions on the files or scripts executed from system startup scripts to see if they are world writable.

Create a list of all potential run command level scripts.

# ls -l /etc/init.d/* /etc/rc* | tr '\011' ' ' | tr -s ' ' | cut -f 9,9 -d " "

Create a list of world writable files.

# find / -perm -002 -type f >> WorldWritableFileList

Determine if any of the world writeable files in "WorldWritableFileList" are called from the run command level scripts.

Note: Depending upon the number of scripts vs. world writable files, it may be easier to inspect the scripts manually.

# more `ls -l /etc/init.d/* /etc/rc* | tr '\011' ' ' | tr -s ' ' | cut -f 9,9 -d " "`

If any system startup script executes any file or script that is world writable, this is a finding.

Remove the world writable permission from programs or scripts executed by run control scripts.

Procedure:

# chmod o-w <program or script executed from run control script>