Network Preferences in Apple Mac OS X 10.4.11 stores PPP passwords in cleartext in a world-readable file, which allows local users to obtain sensitive information by reading this file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/45173
http://www.vupen.com/english/advisories/2008/2584
http://www.us-cert.gov/cas/techalerts/TA08-260A.html
http://www.securityfocus.com/bid/31189
http://securitytracker.com/id?1020881
http://secunia.com/advisories/31882
http://lists.apple.com/archives/security-announce//2008/Sep/msg00005.html