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Vulnerability in "Fujitsu Desktop Update" (for Windows)
From: "Stefan Kanthak" <stefan.kanthak () nexgo de>
Date: Wed, 8 May 2013 22:57:49 +0200

Hi @ll,

Fujitsu's update utility "Fujitsu Desktop Update" (see
<http://support.ts.fujitsu.com/DeskUpdate/Index.asp>), which is
factory-preinstalled on every Fujitsu (Siemens) PC with Windows,
has a vulnerability which allows the execution of a rogue program
in the security context of the current user.

The application is registered as control panel item via

@="Fujitsu DeskUpdate"

The "shell object" with GUID {070B64FF-795D-4DAA-88AD-6D3277C7E445} is
registered with

@="Fujitsu DeskUpdate"
"InfoTip"=expand:"@C:\\Program Files (x86)\\Fujitsu\\DeskUpdate\\DeskUpdate.exe,-132"
"System.Software.TasksFileUrl"="C:\\Program Files (x86)\\Fujitsu\DeskUpdate\\duconfig.xml"

@=expand:"C:\\Program Files (x86)\\Fujitsu\\DeskUpdate\\DeskUpdate.exe,-0"

@="C:\\Program Files (x86)\\Fujitsu\\DeskUpdate\\DeskUpdate.exe"

The last entry is a pathname with unquoted spaces and allows the
execution of the rogue programs "C:\Program.exe" and/or
"C:\Program Files.exe", as documented in

Stefan Kanthak

PS: long pathnames containing spaces exist for about 20 years
    now in Windows, EVERY developer should know how to use them
    properly, and EVERY QA should check their proper use!

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  • Vulnerability in "Fujitsu Desktop Update" (for Windows) Stefan Kanthak (May 09)
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