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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-910	GEN001640	SV-910r2_rule	ECCD-1 ECCD-2	High

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

STIG	Date
AIX 5.3 Security Technical Implementation Guide	2012-05-25

Details

Check Text ( C-402r6_chk )
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 /sbin/init.d/* \| tr '\011' ' ' \| tr -s ' ' \| cut -f 9,9 -d " " Create a list of world writeable files. # find / -perm -002 -type f >> worldWriteableFileList Determine if any of the world writeable files in worldWriteableFileList are called from the run command level scripts. Note: Depending upon the number of scripts vs world writeable files, it may be easier to inspect the scripts manually. # more `ls -l /sbin/init.d/* \| 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.

Check Text ( C-402r6_chk )

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 /sbin/init.d/* | tr '\011' ' ' | tr -s ' ' | cut -f 9,9 -d " "

Create a list of world writeable files.
# find / -perm -002 -type f >> worldWriteableFileList

Determine if any of the world writeable files in worldWriteableFileList are called from the run command level scripts. Note: Depending upon the number of scripts vs world writeable files, it may be easier to inspect the scripts manually.
# more `ls -l /sbin/init.d/* | 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.

Fix Text (F-1064r2_fix)
Remove the world-writable permission from programs or scripts executed by run control scripts. Procedure: # chmod o-w