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opentextExec.txt

opentextExec.txt
Posted Apr 17, 2005
Authored by dila

OpenText FirstClass 8.0 client allows for arbitrary file execution due to insufficient validation of user input.

tags | advisory, arbitrary
SHA-256 | b976296b2efced00f4ad9db88a892382c7216db64fc23218f491679d6f1c3929

opentextExec.txt

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Product: OpenText FirstClass 8.0 Client
Homepage: http://www.firstclass.com
Platform: Microsoft Windows
Description: Insufficient validation of user input allows arbitrary
file execution

FirstClass bookmark files allow the user to organise their web
address's using the familiar FirstClass desktop environment. The
vulnerable field has been highlighted in the attached screen dump. The
URL text string is passed directly to the Windows ShellExecute API,
which allows any local/network file to be executed when the bookmark
is accessed.

A similar issue affecting URL's in FirstClass RTF documents was
apparently reported last year, but remains unpatched.

Simply comparing the first seven characters of the input string to
"http://" should be sufficient protection.

- dila
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