exploit the possibilities

Compal ConnectBox Wireless Filter Bypass

Compal ConnectBox Wireless Filter Bypass
Posted Feb 5, 2016
Authored by Marco Onorati | Site vulnerability-lab.com

Compal ConnectBox Wireless suffers from a passphrase setting filter bypass vulnerability.

tags | exploit, bypass
MD5 | a47bc84e8c74fbe249dc35005cb75af1

Compal ConnectBox Wireless Filter Bypass

Change Mirror Download
Document Title:
Compal ConnectBox Wireless - Passphrase Settings Filter Bypass Vulnerability

References (Source):

Release Date:

Vulnerability Laboratory ID (VL-ID):

Common Vulnerability Scoring System:

Product & Service Introduction:
Wireless modem CBN CH7465LG is the world`s most compact voice modem. EuroDOCSIS 3.0 in the stylish and elegant design suitable for home,
home office or smaller businesses. It can be used in households with one or more computers with support. Wireless remote access to a wireless modem.

(Copy of the Homepage: https://infotomb.com/truac.pdf )

Abstract Advisory Information:
The Vulnerability Laboratory Core Research Team discovered a filter bypass web vulnerability in the official Compal Wireless ConnectBox web-application.

Vulnerability Disclosure Timeline:
2016-02-03: Public Disclosure (Vulnerability Laboratory)

Discovery Status:

Affected Product(s):
Product: ConnectBox - (Wireless) 4.01 - H7465LG-NCIP-

Exploitation Technique:

Severity Level:

Technical Details & Description:
A filter bypass web vulnerability has been discovered in the official Compal Wireless ConnectBox web-application.
The filter bypass web vulnerability allows an attacker to evade the controls of a restriction- or protection mechanism.

The issue allows an attacker to change the wireless passphrase to an insecure passphrase which is forbidden by the applications
javascript engine. The vulnerability affects the `ConnectBox` manufactured by Compal for the local small ISP - Unitymedia.
They are offering high-speed internet access over Cable (TV).

To bypass the filter you only need to replay the POST which changes the wireless passphrase and change the parameters `wlPSkey2g`
and `wlPSkey5g`. The filter won`t allow you to set a passphrase without specialchars or uppercase/lowercase letters. By bypassing
the filter you can set any passphrase (wpa needs at least 8 chars).

The security risk of the filter bypass vulnerability is estimated as medium and the cvss (common vulnerability scoring system) count is 5.8.
Exploitation of the filter bypass vulnerability requires a privileged web-application user account with privileged access and medium user interaction.
Successful exploitation of the vulnerability results in unauthorized access by setting a low secured passphrase key for wpa and wpa2.

Model: CH7465LG-LC
Hardware Version 4.01
Software Version CH7465LG-NCIP-

Proof of Concept (PoC):
The vulnerability can be exploited by remote attackers in the local networka with privileged web-application user account or privileged access and medium user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information or steps below to continue.

--- PoC Session Logs [POST] ---
Status: 200[Ok]
POST http://localhost/xml/setter.xml
Load Flags[LOAD_BACKGROUND LOAD_BYPASS_LOCAL_CACHE_IF_BUSY ] Größe des Inhalts[-1] Mime Type[text/xml]
Request Header:
User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0]
Accept[text/plain, */*; q=0.01]
Accept-Encoding[gzip, deflate]
Content-Type[application/x-www-form-urlencoded; charset=UTF-8]
Response Header:
Date[Tue, 02 Feb 2016 14:12:02 GMT]
Last-Modified[Mon, 12 Oct 2015 11:00:12 GMT]

Security Risk:
The security risk of the filter bypass web vulnerability in the web-application of the hardware models is estimated as medium. (CVSS 5.8)

Credits & Authors:
Vulnerability Laboratory [Research Team] - Marco Onorati

Disclaimer & Information:
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, either expressed
or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab or its suppliers are not liable
in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab
or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for
consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses,
policies, deface websites, hack into databases or trade with fraud/stolen material.

Domains: www.vulnerability-lab.com - www.vuln-lab.com - www.evolution-sec.com
Contact: admin@vulnerability-lab.com - research@vulnerability-lab.com - admin@evolution-sec.com
Section: magazine.vulnerability-db.com - vulnerability-lab.com/contact.php - evolution-sec.com/contact
Social: twitter.com/#!/vuln_lab - facebook.com/VulnerabilityLab - youtube.com/user/vulnerability0lab
Feeds: vulnerability-lab.com/rss/rss.php - vulnerability-lab.com/rss/rss_upcoming.php - vulnerability-lab.com/rss/rss_news.php
Programs: vulnerability-lab.com/submit.php - vulnerability-lab.com/list-of-bug-bounty-programs.php - vulnerability-lab.com/register/

Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory. Permission to
electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other media, are reserved by
Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other information on this website
is trademark of vulnerability-lab team & the specific authors or managers. To record, list (feed), modify, use or edit our material contact
(admin@vulnerability-lab.com or research@vulnerability-lab.com) to get a permission.

Copyright © 2016 | Vulnerability Laboratory - [Evolution Security GmbH]™

SERVICE: www.vulnerability-lab.com
CONTACT: research@vulnerability-lab.com
PGP KEY: http://www.vulnerability-lab.com/keys/admin@vulnerability-lab.com%280x198E9928%29.txt


RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

August 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Aug 1st
    10 Files
  • 2
    Aug 2nd
    8 Files
  • 3
    Aug 3rd
    2 Files
  • 4
    Aug 4th
    1 Files
  • 5
    Aug 5th
    15 Files
  • 6
    Aug 6th
    79 Files
  • 7
    Aug 7th
    16 Files
  • 8
    Aug 8th
    10 Files
  • 9
    Aug 9th
    10 Files
  • 10
    Aug 10th
    0 Files
  • 11
    Aug 11th
    6 Files
  • 12
    Aug 12th
    26 Files
  • 13
    Aug 13th
    15 Files
  • 14
    Aug 14th
    19 Files
  • 15
    Aug 15th
    52 Files
  • 16
    Aug 16th
    11 Files
  • 17
    Aug 17th
    1 Files
  • 18
    Aug 18th
    0 Files
  • 19
    Aug 19th
    0 Files
  • 20
    Aug 20th
    0 Files
  • 21
    Aug 21st
    0 Files
  • 22
    Aug 22nd
    0 Files
  • 23
    Aug 23rd
    0 Files
  • 24
    Aug 24th
    0 Files
  • 25
    Aug 25th
    0 Files
  • 26
    Aug 26th
    0 Files
  • 27
    Aug 27th
    0 Files
  • 28
    Aug 28th
    0 Files
  • 29
    Aug 29th
    0 Files
  • 30
    Aug 30th
    0 Files
  • 31
    Aug 31st
    0 Files

Top Authors In Last 30 Days

File Tags


packet storm

© 2019 Packet Storm. All rights reserved.

Security Services
Hosting By