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TITLE:
Hummingbird Xweb ActiveX Control "PlainTextPassword" Property Buffer
Overflow

SECUNIA ADVISORY ID:
SA32319

VERIFY ADVISORY:
http://secunia.com/advisories/32319/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Hummingbird Xweb ActiveX Control
http://secunia.com/advisories/product/20181/
Exceed 9.x
http://secunia.com/advisories/product/3490/
Exceed 2007
http://secunia.com/advisories/product/14274/
Exceed 2006 11.x
http://secunia.com/advisories/product/10341/
Exceed 10.x
http://secunia.com/advisories/product/5184/
Exceed PowerSuite 10.x
http://secunia.com/advisories/product/5183/

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

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/6761

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