Locked Huawei Flybox B660 Router - Auth Bypass Vulnerability

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Huawei Flybox B660 Router - Auth Bypass Vulnerability

 

 

References (Source):

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

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Huawei ID: 558969357627813

 

 

Release Date:

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

2016-11-18

 

 

Vulnerability Laboratory ID (VL-ID):

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

2010

 

 

Common Vulnerability Scoring System:

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

7.4

 

 

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.

 

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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:

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

2016-11-18: Public Disclosure (Vulnerability Laboratory)

 

 

Discovery Status:

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

Published

 

 

Affected Product(s):

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

Huawei

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

 

 

Exploitation Technique:

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

Remote

 

 

Severity Level:

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

Critical

 

 

Technical Details & Description:

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

A remote auth bypass vulnerability has been discovered in the official Huawei Flybox B660 3g/4g router product series.

The security vulnerability allows remote attackers to compromise any Huawei Flybox B660

Admin Panel using a new a bypass method.

 

The vulnerability is located in the `./htmlcode/html/` modules and `indexdefault.asp ` file of

localhost path URL. Remote attackers are able to compromise any Huawei Flybox B660 admin panel

via unauthenticated GET method request.

 

The security risk of the issue is estimated as critical with a cvss count of 7.4. (CVSS 7.4)

Exploitation of the web vulnerability requires no privileged account or user interaction.

Successful exploitation of the vulnerability results in compromise of the huawei flybox device.

 

Request Method(s):

[+] GET

 

Vulnerable Module(s):

[+] /htmlcode/html/

 

Vulnerable File(s):

[+] indexdefault.asp

 

 

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 vulnerability can be exploited by remote attackers without privileged user account or user interaction.

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

 

After buying a Flybox Huawei B660, the company setup a password for you like: "admin", "12345" or "55555"

We figured out that when you lose your password, you can perform to connect multiple times by using the plain passwords above.

After the third request the connection will be refused by an exception message, by intercepting the request and passing the error

it is possible to bypass the authentication mechanism of the 3g/4g router device. The problem in Flybox Huawei B660 is the following,

there is no test if the password false or true. If an attacker tries the false password of many times on requests they redirect you

after the bypass of the error to change your password permanently.

 

 

--- PoC Session Logs [GET] ---

GET /htmlcode/html/contentdefault.asp HTTP/1.1

Host: localhost

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

Accept-Encoding: gzip, deflate, lzma, sdch

Accept-Language: en-US,en;q=0.8

Cookie: login_url=settings; CNZZDATA1260483764=1049902387-1478277586-%7C1478277586; Basic=index; Language=en; SessionID_R3=1006428909

Referer: http://localhost/htmlcode/html/content.asp

Upgrade-Insecure-Requests: 1

User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36 OPR/41.0.2353.46

HTTP/1.1 200 OK

CACHE-CONTROL: no-cache

Content-Length: 5776

Content-Type: text/html

 

 

PoC Video:

 

 

Solution - Fix & Patch:

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

N/A

 

 

Security Risk:

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

The security risk of the remote vulnerability in the Huawei Flybox B660 3G74G router is estimated as critical. (CVSS 7.4)

 

 

 

Credits & Authors:

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

SaifAllah benMassaoud - ( http://www.vulnerability-lab.com/show.php?user=SaifAllahbenMassaoud'>http://www.vulnerability-lab.com/show.php?user=SaifAllahbenMassaoud )

 

 

 

Disclaimer & Information:

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

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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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