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TITLE:
LinkedIn Internet Explorer Toolbar IEContextMenu ActiveX Control Code
Execution

SECUNIA ADVISORY ID:
SA26181

VERIFY ADVISORY:
http://secunia.com/advisories/26181/

CRITICAL:
Extremely critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
LinkedIn Internet Explorer Toolbar 3.x
http://secunia.com/product/14852/

DESCRIPTION:
Jared DeMott and Justin Seitz have discovered a vulnerability in
LinkedIn Internet Explorer Toolbar, which can be exploited by
malicious people to compromise a user's system.

The vulnerability is caused due to an  error within the
IEToolbar.IEContextMenu.1 (LinkedInIEToolbar.dll) when handling the
"Search()" method, which takes in a VARIANT as the "varBrowser"
argument. This can be exploited to execute arbitrary code when a user
e.g. visits a malicious website.

The vulnerability is confirmed in version 3.0.2.1098. Other versions
may also be affected.

NOTE: Working exploit code is publicly available.

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

PROVIDED AND/OR DISCOVERED BY:
Jared DeMott and Justin Seitz, VDA Labs

ORIGINAL ADVISORY:
http://www.vdalabs.com/tools/linkedin.html

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