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TITLE:
Chilkat XML ActiveX Component Insecure Methods

SECUNIA ADVISORY ID:
SA31951

VERIFY ADVISORY:
http://secunia.com/advisories/31951/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Chilkat XML ActiveX Component
http://secunia.com/advisories/product/19931/

DESCRIPTION:
shinnai has discovered some vulnerabilities in Chilkat XML ActiveX
Component, which can be exploited by malicious people to compromise a
user's system.

The vulnerabilities are caused due to the ChilkatUtil.CkData.1
(ChilkatUtil.dll) ActiveX control including the insecure
"SaveToFile()" and "AppendBinary()" methods. These can be exploited
to create arbitrary files or append data to arbitrary files on the
system in the context of the currently logged-on user.

Successful exploitation allows execution of arbitrary code.

The vulnerabilities are confirmed in ChilkatUtil.dll version 3.0.3.0.
Other versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
shinnai

ORIGINAL ADVISORY:
http://www.shinnai.net/index.php?mod=02_Forum&group=Security&argument=Remote_performed_exploits&topic=1222166972.ff.php

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