full-disclosure - [FD] CVE-2014-2023 - Tapatalk for vBulletin 4.x - multiple blind sql injection (pre-auth)

Open Source and information security mailing list archives

Date: Mon, 13 Oct 2014 22:43:16 +0200
From: "oststrom \(public\)" <pub@...strom.com>
To: <fulldisclosure@...lists.org>
Subject: [FD] CVE-2014-2023 - Tapatalk for vBulletin 4.x - multiple blind
	sql injection (pre-auth)

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*Preliminary VulnNote*

 
CVE-2014-2023 - Tapatalk for vbulletin 4.x - multiple blind sql injection
(pre-auth)

============================================================================
========

 
Overview

- --------

 
    date    :  10/12/2014   

    cvss    :  7.8 (AV:N/AC:L/Au:N/C:C/I:N/A:N) base  

    cwe     :  89   

    
    vendor  :  Tapatalk Inc  

    product :  Tapatalk for vBulletin 4.x   

    versions affected:    latest (to date)

                        5.2.1    (verified)

                        4.9.0     (verified)

                        
    exploitability :

                * remotely exploitable

                * NO authentication required

                * NO user interaction required

                * NO special configuration required (default settings)

                
Abstract

- ---------

    Tapatalk for vBulletin 4.x does not properly sanitize some xmlrpc calls 

    allowing unauthenticated users to inject arbitrary SQL commands.

    
    risk: high

    
    !! Note !! - this is a preliminary VulnNote. The full PoC / Description
will

    be made available within the next 7 days (see contact) to allow mobiquo
to 

    fix this.

    
    googledork: see PoC code

 
Details

- --------

    
    vulnerable component: 

        * stripped // see full VulnNote - (contact)

    xmlrpc request is decoded, decoded attacker provided values are directly

    being used in sql query.

 
Proof of Concept (PoC)

- ----------------------

 
    see https://github.com/tintinweb/pub/cve-2013-2023

    
    1) prerequesites

         vBulletin 4.x with Tapatalk for vBulletin 4.x installed

    2) run PoC

         edit PoC to match your TARGET (, optionally DEBUG=True)

         (optionally) edit your query to extract specific database values

         Note: PoC will try to detect tapatalk on that host

         run PoC

        
    by default extracts

    * mysql root hash (in case vBulletin db user has permissions to do so)

    * vbulletin db record fields (apikey) - perfectly chains with
CVE-2014-2023

    
    only limited by the vBulletin db_user access permissions

    
Timeline

- --------

 
    2014-01-14: initial vendor contact, no response

    2014-02-24: vendor contact, no response

    2014-10-13: public disclosure

    
Contact

- --------

    tintinweb - https://github.com/tintinweb/pub/cve-2013-2023

    
(0x721427D8)

    
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