Microsoft Internet Explorer contains buffer overflow in processing of object types

2003-06-04T00:00:00
ID VU:679556
Type cert
Reporter CERT
Modified 2003-06-04T00:00:00

Description

Overview

A remotely exploitable vulnerability has been discovered in Internet Explorer. Exploitation of this vulnerability may lead to the execution of arbitrary code.

Description

A remotely exploitable buffer overflow vulnerability has been discovered in Internet Explorer versions 5.1, 5.5 and 6.0. The <object> tag contains a "type" field used to determine how Internet Explorer should treat an object. It is possible to bypass the buffer checks on the input to the "type" field by using a specific character and cause a buffer overflow.

An attacker could create an HTML file that includes a malicious <OBJECT> tag to execute arbitrary code on the victim's machine. When a victim using a vulnerable version of IE, or other applications that use IE as their HTML interpreter, visits the malicious file (via web page, email message, file sharing, etc.), the attacker-supplied code will be executed.


Impact

Exploitation of this vulnerability may lead to the execution of arbitrary code with the privileges of the current user.


Solution

Microsoft has released MS03-020 to resolve this issue.


Systems Affected

Vendor| Status| Date Notified| Date Updated
---|---|---|---
Microsoft Corporation| | -| 04 Jun 2003
If you are a vendor and your product is affected, let us know.

CVSS Metrics

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

References

  • <http://www.microsoft.com/windows/ie/downloads/critical/818529/default.asp>
  • <http://www.microsoft.com/security/security_bulletins/ms03-020.asp>
  • <http://www.eeye.com/html/Research/Advisories/AD20030604.html>
  • <http://www.secunia.com/advisories/8943/>

Credit

Thanks to Microsoft Security and eEye Digital Security for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

  • CVE IDs: CAN-2003-0344
  • Date Public: 04 Jun 2003
  • Date First Published: 04 Jun 2003
  • Date Last Updated: 04 Jun 2003
  • Severity Metric: 17.47
  • Document Revision: 11