FIX: Security Issue Allows Access to Files on User's Computer (277014)

The information in this article applies to:

Microsoft virtual machine

This article was previously published under Q277014

SYMPTOMS

The Microsoft virtual machine (Microsoft VM) includes a security vulnerability that could enable a malicious Web site operator to access the files on a user's computer and, if the user is part of an intranet, to read Web content within that intranet.

This affects the following builds of the Microsoft VM:

All builds in the 3000 series.

CAUSE

The Microsoft VM allows archive files (CAB or JAR files) that are used in a Java-based <OBJECT> tag and referenced by the CABBASE, CABINETS, or ARCHIVE parameters to come from locations other than the codebase.

RESOLUTION

To resolve this problem, install build 3319 or later of the Microsoft VM. For more information, visit the following Microsoft Web site:

http://www.microsoft.com/mscorp/java/

WARNING: After you install the updated Microsoft VM, you cannot uninstall it.

2000-series builds are no longer supported
Customers should upgrade to the latest 3000-series build.
3000-series Microsoft VM customers
Customers should upgrade to build 3319 or later.

STATUS

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article.

This bug was corrected in the Microsoft VM build 3319.

REFERENCES

For more information, please see Microsoft Security Bulletin MS00-081 at the following Microsoft Web site:

http://www.microsoft.com/technet/security/bulletin/MS00-081.mspx

For additional security-related information about Microsoft products, please refer to the following Microsoft Web site:

http://www.microsoft.com/technet/security/

For support information about Visual J++ and the SDK for Java, visit the following Microsoft Web site:

http://www.microsoft.com/java

Modification Type:	Major	Last Reviewed:	6/14/2006
Keywords:	kbBug kbfix kbJava kbJavaVM33xxfix KbSECHack kbSecurity KbSECVulnerability KB277014