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WP-FacebookConnect plugin opens a backdoor for an exploit (9 posts)

  1. Oxhorn
    Member
    Posted 4 years ago #

    Facebook Connect worked for me where other plugins failed, however it opened a back door for a hacker to manipulate my database.

    Just after installing and configuring the plugin, I logged into my dashboard to find no access to my posts, pages or any other administrator functionality. After much hunting, I discovered that, somehow, my administration user's privileges had been stripped. i solved it by doing the following:

    1) Log into phpMyAdmin from your cPanel or use the phpMyadmin plugin.
    2) Select the database for your WordPress site.
    3) From the list to the right, scroll down and click on wp_usermeta
    4) Find your admin user. It should be the very first one listed (meta value "your name")
    5) Click the edit icon (the pencil) next to the table labeled "wp_capabilities" under the meta_key column.
    6) In the "meta_value" text field, delete what is there and paste in teh following:

    a:1:{s:13:"administrator";b:1;}

    Click "go" and you will now have your administrator powers back.

    IMMEDIATELY disable the Facebook Connect plugin. The robot that hacks your site will send its signal randomly, sometimes right after you grant yourself your powers back.

    The last thing I expected was for this plugin to be causing the problem, and so naturally I went through EVERY other option possible to try and fix it, including resetting passwords, usernames, table prefixes, adding .htaccess files to wp_admin and wp_config, scanning all my files (every page, image, .css, .php and .js) for malicious code, installing dozens of security plugins and so on. Every security blog that youc an name, I read it, and I did what it said, to no avail. I then started disabling my plugins one by one. Disabling one, waiting a day to see if i got hacked again, and if I did, re-enabling it and disabling a new one.

    I finally was rid of my hacker issue only after I disabled this plugin. it has been 5 days since my wordpress site has been hacked, and I can only conclude that this plugin alone opened a backdoor to my databases.

    I am very sad to have to disable this plugin, for it was the only Facebook connect plugin I tried (and I tried them all) that actually allowed Facebook users to register a new account on my site. I really hope the issue is solved, but I am now too afraid to use this plugin again.

    I now use Simple Facebook Connect for the "like" feature and the widgets, but it will not work as well as thsi one did.

    http://wordpress.org/extend/plugins/wp-facebookconnect/

  2. Oxhorn
    Member
    Posted 4 years ago #

    Just an FYI bump.

  3. zer0faults
    Member
    Posted 4 years ago #

    I do not believe this was a hacker, but an issue with the installation. It happened to be as well, I had to go into the db and fix it. Never happened after that.

  4. Oxhorn
    Member
    Posted 4 years ago #

    It kept happening to me though, and it went on for weeks, which is why I think it must have been a hacker.

  5. Oxhorn
    Member
    Posted 4 years ago #

    A goodly bump

  6. ahupp
    Member
    Plugin Author

    Posted 4 years ago #

    Hello,
    I'm the author of this plugin. I'll look at fixing it ASAP. I don't believe it's a security issue though - I think it's a bug that is resetting the admin user's role.

    Could you tell me what version of wordpress and which version of the plugin you are using? This post is labeled as 'wordpress 3.0', is that correct? My email is adam <at> hupp.org. Thanks,

    -Adam

  7. ahupp
    Member
    Plugin Author

    Posted 4 years ago #

    Ok, thanks to another user and some digging I found that this is due to a backwards-incompatible change in wp_insert_user() in 3.0. I'll push out an update and post here when that's done.

    -Adam

  8. ahupp
    Member
    Plugin Author

    Posted 3 years ago #

    I put a fix up: http://wordpress.org/extend/plugins/wp-facebookconnect/
    Let me know if you have any issues.

    -Adam

  9. Diane Bourque
    Member
    Posted 3 years ago #

    ahupp - you're the man! good job on reacting on this so quickly. I would qualify this as somewhat "urgent". Good luck with the update and keep us posted. I know several blogs who are using this great plugin.

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