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Hummingbird Xweb ActiveX Control "PlainTextPassword" Property Buffer Overflow
Secunia Advisory: SA32319
Release Date: 2008-10-17
Last Update: 2008-10-24
Popularity: 1,746 views

Critical:
Highly critical
Impact: DoS
System access
Where: From remote
Solution Status: Unpatched

Software:Exceed 10.x
Exceed 2006 11.x
Exceed 2007
Exceed 9.x
Exceed PowerSuite 10.x
Hummingbird Xweb ActiveX Control

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CVE reference:CVE-2008-4729


Description:
Thomas Pollet has reported a vulnerability in Hummingbird Xweb ActiveX Control, which potentially can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the Hummingbird.XWebHostCtrl.1 ActiveX control (hclxweb.dll) when handling the "PlainTextPassword" property. This can be exploited to cause a stack-based buffer overflow by assigning an overly long string to the affected property.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in versions prior to 13.0.

Solution:
Set the kill-bit for the affected ActiveX control.

Provided and/or discovered by:
Thomas Pollet

Changelog:
2008-10-24: Added CVE reference.

Original Advisory:
http://milw0rm.com/exploits/6761

Extended Solution:
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