SmartFilter Web Gateway Security 4.2.1.00 stores user credentials in cleartext in config.txt and uses insecure permissions for this file, which allows local users to gain privileges.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49338
http://secunia.com/advisories/34390
http://archives.neohapsis.com/archives/fulldisclosure/2009-03/0314.html