The IOKit HID interface in Apple Mac OS X 10.3.9 and 10.4 through 10.4.8 does not sufficiently limit access to certain controls, which allows local users to gain privileges by using HID device events to read keystrokes from the console.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32973
http://www.vupen.com/english/advisories/2007/1470
http://www.vupen.com/english/advisories/2007/0930
http://www.us-cert.gov/cas/techalerts/TA07-109A.html
http://www.us-cert.gov/cas/techalerts/TA07-072A.html
http://www.securitytracker.com/id?1017942
http://www.securitytracker.com/id?1017751
http://www.securityfocus.com/bid/22948
http://secunia.com/advisories/24966
http://secunia.com/advisories/24479
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.html