OpenPLI v3.0 beta (OpenPLi-beta-dm7000-20130127-272) - Multiple Vulnerabilities

# Exploit Title: Multiple Vulnerabilities in OpenPLI
# Date: 13.02.2013
# Exploit Author: m-1-k-3
# Vendor Homepage: http://openpli.org/
# Software Link: http://openpli.org/
# Version: v3.0 beta (OpenPLi-beta-dm7000-20130127-272) and below
 
Device Name: OpenPLI - Dream Multimedia Box with OpenPLI software
Vendor of device: Dream Multimedia
Vendor of Software: OpenPLI Community
 
============ Device Details: ============
 
Linux Kernel    Linux version 2.6.9 ([email protected]) (gcc version 3.4.4) #1 Wed Aug 17 23:54:07 CEST 2011
Firmware    release 1.1.0, 27.01.2013
FP Firmware 1.06
Web Interface   6.0.4-Expert - PLi edition by [lite]
 
More infos: http://openpli.org/
 
============ Vulnerability Overview: ============
 
* OS Command Execution:
 
    parameter: maxmtu
 
The vulnerability is caused by missing input validation in the maxmtu parameter and can be exploited to inject and execute arbitrary shell commands. It is possible to use Netcat to fully compromise the device.
 
http://Target-IP/cgi-bin/setConfigSettings?maxmtu=%26COMMAND%26&hddstandby=2&hddacoustics=160&timeroffsetstart=0&timeroffsetstop=0&audiochannelspriority=&showsatpos=on&trustedhosts=&epgcachepath=%2Fhdd&epgsqlpath=%2Fvar%2Flib%2Fsqlite
 
It is possible to shorten the URL to the following:
 
http://Target-IP/cgi-bin/setConfigSettings?maxmtu=%26COMMAND%26
 
There is Netcat preinstalled on the device. It is a very small edition of netcat, so you have to play a bit with it but you will get it ;)
 
* stored XSS:
 
Box Control -> Configuration -> Webserver -> User, Password
 
    parameter: AuthUser, AuthPassword
 
Box Control -> Configuration -> Settings
 
    parameter: audiochannelspriority
 
Injecting scripts into the parameter xxx reveals that this parameter is not properly validated for malicious input.
 
============ Solution ============
 
No known solution available.
 
============ Credits ============
 
The vulnerability was discovered by Michael Messner
Mail: devnull#at#s3cur1ty#dot#de
Web: http://www.s3cur1ty.de/advisories
Twitter: @s3cur1ty_de
 
============ Time Line: ============
 
October 2012 - disocovered vulnerability
xx.02.2013 - public release
 
===================== Advisory end =====================

#  0day.today [2018-03-14]  #