The Disk Mount scanner in Symantec AntiVirus for Macintosh 9.x and 10.x, Norton AntiVirus for Macintosh 10.0 and 10.1, and Norton Internet Security for Macintosh 3.x, uses a directory with weak permissions (group writable), which allows local admin users to gain root privileges by replacing unspecified files, which are executed when a user with physical access inserts a disk and the "Show Progress During Mount Scans" option is enabled.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38229
http://www.vupen.com/english/advisories/2007/3698
http://www.securityfocus.com/bid/26253
http://securitytracker.com/id?1018890
http://securitytracker.com/id?1018889
http://securityresponse.symantec.com/avcenter/security/Content/2007.11.02.html