A class in Microsoft's Java virtual machine (VM) does not properly validate trusted applets, allowing untrusted applets to exploit native methods and execute arbitrary code.
Microsoft's Java VM is installed on Windows 98, NT, 2000, and xp. It is used by Internet Explorer and Outlook Express to execute Java applets.
The VM includes a class named "com.ms.osp.ospmrshl" that provides XML support to Java applets. This class exposes certain methods that are only intended to be accessed by trusted applets. However, the class does not check whether the applet is trusted before exposing these methods. Therefore, untrusted applets may access the methods and use them to execute arbitrary code on the client system.
A remote attacker may execute arbitrary code on a client running Internet Explorer or some configurations of Outlook Express.
Apply a patch
Thanks to Jouko Pynnonen for reporting this vulnerability.
This document was written by Shawn Van Ittersum.
|Date First Published:||2002-10-11|
|Date Last Updated:||2003-08-13 19:45 UTC|