Vulnerability Note VU#462451

Microsoft Internet Explorer allows read access to local files via incorrect VBScript handling

Original Release date: 27 Sep 2002 | Last revised: 27 Sep 2002

Overview

A vulnerability in the cross-domain frame security model of Internet Explorer may allow remote attackers to view the contents of local files when a user views a malicious web page.

Description

There's a vulnerability in the cross-domain frame security model of Internet Explorer that may allow malicious script to access the content in other frames. Internet Explorer versions 5.01, 5.5 and 6.0 have this vulnerability. By loading the contents of a local file into another frame, a malicious web page author may be able to view the contents of the file.

Impact

The contents of local files may be exposed to a malicious web page author when a user views the web page in Internet Explorer. The vulnerability may also allow the malicious web page author to view subsequent pages opened by the user.

Solution

Apply a Patch

Microsoft has published patches correcting this vulnerability. The patches are listed in their advisory at:

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-16 Jul 2002
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

Thanks to Zentai Peter Aron of Ivy Hungary Ltd for discovering this vulnerability.

This document was written by Cory F. Cohen.

Other Information

  • CVE IDs: CAN-2002-0052
  • Date Public: 21 Feb 2002
  • Date First Published: 27 Sep 2002
  • Date Last Updated: 27 Sep 2002
  • Severity Metric: 3.37
  • Document Revision: 8

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