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TITLE:
Chilkat Zip ActiveX Component Zip2 ActiveX Control Two Insecure
Methods

SECUNIA ADVISORY ID:
SA25962

VERIFY ADVISORY:
http://secunia.com/advisories/25962/

CRITICAL:
Less critical

IMPACT:
Manipulation of data

WHERE:
>From remote

SOFTWARE:
Chilkat Zip ActiveX Component
http://secunia.com/product/14736/

DESCRIPTION:
shinnai has discovered two vulnerabilities in Chilkat Zip ActiveX
Component, which can be exploited by malicious people to overwrite
arbitrary files.

The vulnerabilities are caused due to the Zip2 (ChilkatZip2.dll)
ActiveX control including the insecure "SaveLastError()" and
"WriteExe()" methods, which writes a file specified as an argument.
These can be exploited to overwrite and corrupt arbitrary files on
the system in the context of the currently logged-on user.

The vulnerabilities are confirmed in version 12.4.3.0 of the Zip2
ActiveX control. Other versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
shinnai

ORIGINAL ADVISORY:
http://www.milw0rm.com/exploits/4160

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