Sun Java Web Start Sandbox Bypass Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun Java Web Start. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the writeManifest() method of the CacheEntry class. A directory traversal flaw in this method allows the creation of arbitrary files on the target system. After the file has been created, a call to Runtime.getRuntime.exec() can be used to execute the file.