Java Web Start in Sun JDK and JRE 6 Update 2 and earlier, JDK and JRE 5.0 Update 12 and earlier, and SDK and JRE 1.4.2_15 and earlier does not properly enforce access restrictions for untrusted applications, which allows user-assisted remote attackers to obtain sensitive information (the Java Web Start cache location) via an untrusted application, aka "three vulnerabilities."
Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.