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Insecure Library Loading
Highly critical

Microsoft Internet Explorer Multiple Vulnerabilities

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Release Date:  2009-06-09    Last Update:  2009-06-11    Views:  12,328

Secunia Advisory SA35362

Where:

From remote

Impact:

Security Bypass, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Some vulnerabilities have been reported in Microsoft Internet Explorer, which can be exploited by malicious people to bypass certain security restrictions or compromise a user's system.

1) An error in the handling of cached content can be exploited to bypass domain restrictions and disclose information from the local system or from windows in other domains or Internet Explorer zones via redirects to URIs specified in the Universal Naming Convention (UNC) form.

2) An error when handling calls to DHTML objects can be exploited to corrupt memory and potentially execute arbitrary code.

3) An error when handling a large number of asynchronous "XMLHttpRequest" requests can be exploited to corrupt memory and potentially execute arbitrary code.

4) An error exists when handling "setCapture()" calls issued on a collection of specially crafted objects. This can be exploited to corrupt memory and potentially execute arbitrary code when the capture is released.

5) An error exists when handling repeated calls to event handlers, issued after adding nodes of an HTML document. This can be exploited to dereference freed memory and potentially execute arbitrary code when a specially crafted web page is repeatedly rendered.

6) An error when handling repeated calls to "getElementsByTagName()" can be exploited to corrupt memory and potentially execute arbitrary code by using the "onreadystatechange" event and repeated page rendering to improperly free an allocated object.

7) An error in the processing of malformed HTML row property references can be exploited to dereference a pointer to freed memory and potentially execute arbitrary code.


Solution:
Apply updates.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Jorge Luis Alvarez Medina of Core Security Technologies
2) Haifei Li of Fortinetís FortiGuard Global Security Research Team
3) an anonymous researcher, reported via ZDI
4) Peter Vreugdenhil, reported via ZDI
5, 6) ling and wushi of team509, reported via ZDI
7) Nils, reported via ZDI

Original Advisory:
Microsoft (KB969897):
http://www.microsoft.com/technet/security/Bulletin/MS09-019.mspx

Core Security Technologies:
http://www.coresecurity.com/content/ie-security-zone-bypass

Fortinetís FortiGuard Global Security Research Team:
http://www.fortiguardcenter.com/advisory/FGA-2009-22.html

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-09-036/
http://www.zerodayinitiative.com/advisories/ZDI-09-037/
http://www.zerodayinitiative.com/advisories/ZDI-09-038/
http://www.zerodayinitiative.com/advisories/ZDI-09-039/
http://www.zerodayinitiative.com/advisories/ZDI-09-041/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Microsoft Internet Explorer Multiple Vulnerabilities

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