Waraxe IT Security Portal  
  Login or Register
::  Home  ::  Search  ::  Your Account  ::  Forums  ::   Waraxe Advisories  ::  Tools  ::
April 23, 2014
Menu
 Home
 Logout
 Discussions
 Forums
 Members List
 IRC chat
 Tools
 Base64 coder
 MD5 hash
 CRC32 checksum
 ROT13 coder
 SHA-1 hash
 URL-decoder
 Sql Char Encoder
 Affiliates
 y3dips ITsec
 Md5 Cracker
 User Manuals
 AlbumNow
 Content
 Content
 Sections
 FAQ
 Top
 Info
 Feedback
 Recommend Us
 Search
 Journal
 Your Account



User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: GraceLeha
New Today: 0
New Yesterday: 1
Overall: 8983

People Online:
Visitors: 246
Members: 0
Total: 246
milw0rm
·[web applications] - RunCMS 1.6.1 - (pm.class.php) Multiple SQL Injection Vulnerabilities
·[web applications] - csUpload Script Site - Authentication Bypass Vulnerability
·[web applications] - QuickCms 5.4 - Multiple Vulnerabilites
·[dos / poc] - Heartbleed User Session Extraction Exploit
·[dos / poc] - Asterisk 1.x - BYE Message Remote Denial of Service Vulnerability
·[remote exploits] - Vtiger Install Unauthenticated Remote Command Execution Exploit
·[remote exploits] - MS14-017 Microsoft Word RTF Object Confusion Exploit
·[remote exploits] - BlackBerry Z 10 Buffer Overflow Vulnerability
·[remote exploits] - Sun Java Runtime Environment 1.6 - WebStart JNLP File Stack Buffer Overflow
·[remote exploits] - GSC Client 1.00 2067 - Privilege Escalation Vulnerability

read more...
PacketStorm News
·FreeBSD Security Advisory - OpenSSL Issues
·FreeBSD Security Advisory - NFS Server Deadlock
·Cisco Security Advisory 20140409-asa
·Cisco Security Advisory 20140409-heartbleed
·Mandriva Linux Security Advisory 2014-067
·Slackware Security Advisory - openssl Updates
·Red Hat Security Advisory 2014-0380-01
·Red Hat Security Advisory 2014-0389-01
·Red Hat Security Advisory 2014-0383-01
·Red Hat Security Advisory 2014-0382-01

read more...
[waraxe-2007-SA#050] - Sql Injection in WordPress 2.1.3





Author: Janek Vind "waraxe"
Date: 21. May 2007
Location: Estonia, Tartu
Web: http://www.waraxe.us/advisory-50.html


Target software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Vulnerable: WordPress 2.1.3
Patched: WordPress 2.2

http://www.wordpress.org/


Vulnerabilities:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1. critical sql injection in "admin-ajax.php"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Let's have look @ source code of "wp-admin/admin-ajax.php" ~ line 6:

------------------[source code]----------------------
define('DOING_AJAX', true);

check_ajax_referer();
if ( !is_user_logged_in() )
die('-1');
------------------[/source code]----------------------

Now let's take a peek at "check_ajax_referer()"

------------------[source code]----------------------
function check_ajax_referer() {
$cookie = explode('; ', urldecode(empty($_POST['cookie']) ?
$_GET['cookie'] : $_POST['cookie'])); // AJAX scripts must pass
cookie=document.cookie
foreach ( $cookie as $tasty ) {
if ( false !== strpos($tasty, USER_COOKIE) )
$user = substr(strstr($tasty, '='), 1);
if ( false !== strpos($tasty, PASS_COOKIE) )
$pass = substr(strstr($tasty, '='), 1);
}
if ( !wp_login( $user, $pass, true ) )
die('-1');
------------------[/source code]----------------------

We can see "urldecode()" in use ...
So by using "%2527" we can deliver single quotes to "wp_login()",
effectively bypassing php's "magic_quotes" feature!

Hmm, let's proceed further:


------------------[source code]----------------------
function wp_login($username, $password, $already_md5 = false) {
global $wpdb, $error;
...
$login = get_userdatabylogin($username);
------------------[/source code]----------------------


And finally:


------------------[source code]----------------------
function get_userdatabylogin($user_login) {
global $wpdb;
...
if ( !$user = $wpdb->get_row("SELECT * FROM $wpdb->users
WHERE user_login = '$user_login'") )
return false;
------------------[/source code]----------------------

So really there seems to be exist sql injection possibility.
Now it's time for some proof-of-concept fun :)

------------------[PoC test]-----------------------
http://localhost/wordpress.2.1.3/wp-admin/admin-ajax.php?
cookie=wordpressuser_5a136e6377f39b00c76957953df945db%253dx%2527gotcha
;+wordpresspass_5a136e6377f39b00c76957953df945db%253dx
------------------[/PoC test]----------------------

... and if WordPress sql error feedback is enabled, then we can see
nice error message:

WordPress database error: [You have an error in your SQL syntax;
check the manual that corresponds to your MySQL server version for
the right syntax to use near 'gotcha'' at line 1]

SELECT * FROM wp_users WHERE user_login = 'x'gotcha'

Yeah, it works!! But before testing that PoC cookie suffix must be changed
to currently valid. Here is how it goes:

Example target is: http://localhost/wordpress.2.1.3/wp-admin/admin-ajax.php
Base url for WordPress installation is: http://localhost/wordpress.2.1.3
And suffix is:

md5('http://localhost/wordpress.2.1.3') = '5a136e6377f39b00c76957953df945db'

And final variable names:

wordpressuser_5a136e6377f39b00c76957953df945db
wordpresspass_5a136e6377f39b00c76957953df945db

One more time: for every target must be calculated specific suffix!

OK, now about exploiting ...

It seems that blind fishing is only method for this security hole.
There is exploit, I have written in php, which will retrieve from database
WordPress admin password md5 hash within few minutes.

Get it from here:

http://www.waraxe.us/ftopict-1776.html


//-----> See ya soon and have a nice day ;) <-----//


How to fix:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

WordPress newest version 2.2 is immune against this sql injection.
So --> http://wordpress.org/download/ <-- update it NOW!


Greetings:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Greets to LINUX, Heintz, slimjim100, shai-tan, y3dips, Sm0ke, Chb
and all other people who know me!

Special greets goes to Raido Kerna.

Tervitusi Torufoorumi rahvale!

Contact:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

come2waraxe@yahoo.com
Janek Vind "waraxe"

Homepage: http://www.waraxe.us/


Shameless advertise:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Axing url for easy use - http://urlaxe.com/
All about sql injections - http://sqlaxe.com/

---------------------------------- [ EOF ] ------------------------------------









Copyright © by Waraxe IT Security Portal All Right Reserved.

Published on: 2007-05-21 (22991 reads)

[ Go Back ]
Top members by posts
waraxe  waraxe - 2407
vince213333  vince213333 - 736
vn5socks  vn5socks - 723
pexli  pexli - 665
Mullog  Mullog - 539
demon  demon - 485
shai-tan  shai-tan - 477
LINUX  LINUX - 404
Cyko  Cyko - 374
tsabitah  tsabitah - 328
SecurityFocus
·Vuln: Sophos Web Appliance Privilege Escalation and Remote Code Execution Vulnerabilities
·Vuln: qEngine Database Backup Information Disclosure Vulnerability
·Vuln: LibYAML 'yaml_parser_scan_uri_esc apes()' Function Remote Heap Based Buffer Overflow Vulnerability
·Vuln: Python 'readline()' Function Denial of Service Vulnerability
·Bugtraq: iVault Private P&V 1.1 iOS - Path Traversal Vulnerability
·Bugtraq: BlueMe Bluetooth v5.0 iOS - Code Execution Vulnerability
·Bugtraq: AppFish Offline Coder v2.2 iOS - Persistent Software Vulnerability
·Bugtraq: [SECURITY] [DSA 2899-1] openafs security update
·More rss feeds from SecurityFocus

read more...
alexa



ATI Radeon reviews
All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2013 Janek Vind "waraxe"
Page Generation: 0.059 Seconds