Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Huawei E303 contains a cross-site request forgery vulnerability
Informations
Name VU#325636 First vendor Publication 2014-05-30
Vendor VU-CERT Last vendor Modification 2014-06-05
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
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Detail

Vulnerability Note VU#325636

Huawei E303 contains a cross-site request forgery vulnerability

Original Release date: 30 May 2014 | Last revised: 05 Jun 2014

Overview

The built-in web interface of Huawei E303 devices contains a cross-site request forgery vulnerability.

Description

Huawei E303 wireless broadband modems include a web interface for administration and additional services. The web interface allows users to send and receive SMS messages using the connected cellular network.

CWE-352: Cross-Site Request Forgery (CSRF)
The /api/sms/send-sms URL is vulnerable to cross-site request forgery attacks. The vulnerability can be exploited when a user with adjacent network access to the device visits a malicious webpage. The malicious webpage can silently make requests to the device's SMS API (e.g. http://192.168.1.1/api/sms/send-sms) by leveraging the victim's network access to the device.

Benjamin Daniel Mussler reports:

The Web UI communicates with the vulnerable module by sending and receiving XML requests and responses via XmlHttpRequest, which provides protection against similar attacks. However, the vulnerable module can also be accessed and controlled by sending an HTTP-POST request with XML in the request's body. The vulnerable module will process this XML as if it had originated from the Web UI.

[Proof -of-concept HTTP POST request]:

    POST /api/sms/send-sms HTTP/1.1
    Host: hi.link
    User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    Accept-Language: en-us,en;q=0.8,de-de;q=0.5,de;q=0.3
    Accept-Encoding: gzip, deflate
    Referer: http://hi.link/
    Connection: keep-alive
    Content-Type: text/plain
    Content-Length: 225

    <?xml version="1.0"
    encoding="UTF-8"?><request><Index>-1</Index><Phones><Phone>4422</Phone></Phones><Sca></Sca><Content>
    Sample Text</Content><Length>0</Length><Reserved>1</Reserved><Date>2013-12-03
    16:00:00</Date></request>

The following device configuration was reported to be vulnerable. Other versions may be affected:
Software version: 22.157.18.00.858
Hardware version: CH2E303SM
Web UI version: 11.010.06.01.858

Impact

A malicious site could send SMS messages on behalf of the device, possibly incurring SMS charges.

Solution

Huawei has stated they are currently working on a fix for this issue. In the meantime, CERT/CC is unaware of a practical solution to this problem.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Huawei TechnologiesAffected10 Mar 201409 May 2014
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

GroupScoreVector
Base4.3AV:N/AC:M/Au:N/C:N/I:P/A:N
Temporal3.9E:POC/RL:U/RC:C
Environmental1.1CDP:L/TD:L/CR:ND/IR:ND/AR:ND

References

  • http://www.huawei.com
  • http://consumer.huawei.com/en/mobile-broadband/data-card/tech-specs/e303-en.htm
  • http://b.fl7.de/2014/05/huawei-e303-sms-vulnerability-CVE-2014-2946.html

Credit

Thanks to Benjamin Daniel Mussler for reporting this vulnerability.

This document was written by Todd Lewellen.

Other Information

  • CVE IDs:CVE-2014-2946
  • Date Public:30 May 2014
  • Date First Published:30 May 2014
  • Date Last Updated:05 Jun 2014
  • Document Revision:9

Feedback

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Original Source

Url : http://www.kb.cert.org/vuls/id/325636

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-352 Cross-Site Request Forgery (CSRF) (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Hardware 1
Os 1

Alert History

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Date Informations
2016-04-27 06:52:47
  • Multiple Updates
2014-06-06 00:21:36
  • Multiple Updates
2014-06-03 21:27:54
  • Multiple Updates
2014-06-03 00:24:15
  • Multiple Updates
2014-05-30 17:19:16
  • First insertion