e107mygal-download.txt

`e107 My_Gallery Plugin Arbitrary File Download Vulnerability  
  
Release Date: 2008-03-25  
Critical: Moderately critical  
Impact: Exposure of system information, Exposure of sensitive information  
Where: From remote  
Solution Status: Unpatched  
Software: My_Gallery v2.3 (plugin for e107)  
Link: http://plugins.e107.org/e107_plugins/psilo/psilo.php?artifact.208  
  
Description:  
  
A photo gallery for e107, powered by Highslide JS script. with random  
gallery menu and navigation menu.  
  
+ User interface for uploads images  
+ Pre-moderation users download  
+ Control Panel, can edit the name and description, delete and move  
+ New comment system, it is now the most opulent gallery  
+ New Front page  
+ Added BBcode and a button  
  
Vulnerability:  
Jerome Athias has discovered a vulnerability in My_Gallery plugin for  
e107, which can be exploited by malicious people to disclose sensitive  
information.  
  
The vulnerability is caused due to an input validation error in  
dload.php when processing arguments passed to the "file" parameter. This  
can be exploited to download arbitrary files from the affected system.  
  
The vulnerability is confirmed in version 2.3. Other versions may also  
be affected.  
  
Solution:  
Edit the source code to ensure that input is properly validated.  
  
Dork: inurl:"e107_plugins/my_gallery"  
  
Provided and/or discovered by:  
Jerome Athias, JA-PSI  
http://www.ja-psi.fr  
  
Other References:  
https://www.securinfos.info  
  
  
------------------------------------------------------------------  
PoC:  
http://target.com/e107_plugins/my_gallery/dload.php?file=dload.php  
  
File is downloaded as a .jpg file but the PHP source code can be  
retrieved using a text editor.  
  
`