ESB-2018.2302 - [Appliance] NetComm Wireless 4G LTE Light Industrial M2M Router: Multiple vulnerabilities 2018-08-10

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2302
         Multiple vulnerabilities have been identified in NetComm
                Wireless 4G LTE Light Industrial M2M Router
                              10 August 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           NetComm Wireless 4G LTE Light Industrial M2M Router
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Cross-site Request Forgery -- Remote/Unauthenticated
                   Cross-site Scripting       -- Remote/Unauthenticated
                   Access Confidential Data   -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-14785 CVE-2018-14784 CVE-2018-14783
                   CVE-2018-14782  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-18-221-02

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Advisory (ICSA-18-221-02)

NetComm Wireless 4G LTE Light Industrial M2M Router

Original release date: August 09, 2018

Legal Notice

All information products included in http://ics-cert.us-cert.gov are provided
"as is" for informational purposes only. The Department of Homeland Security 
(DHS) does not provide any warranties of any kind regarding any information 
contained within. DHS does not endorse any commercial product or service, 
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For 
more information about TLP, see http://www.us-cert.gov/tlp/.

1. EXECUTIVE SUMMARY

CVSS v3 9.8

ATTENTION: Exploitable remotely/low skill level to exploit

Vendor: NetComm Wireless

Equipment: 4G LTE Light Industrial M2M Router

Vulnerabilities: Information Exposure, Cross-site Request Forgery, Cross-site
Scripting, Information Exposure through Directory Listing

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow for the exposure
of sensitive information.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of the 4G LTE Light Industrial M2M Router (NWL-25), a 
cellular router, are affected:

4G LTE Light Industrial M2M Router (NWL-25) with firmware 2.0.29.11 and prior.

3.2 VULNERABILITY OVERVIEW

3.2.1 INFORMATION EXPOSURE CWE-200

The device allows access to configuration files and profiles without 
authenticating the user.

CVE-2018-14782 has been assigned to this vulnerability. A CVSS v3 base score 
of 7.5 has been calculated; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.2.2 CROSS-SITE REQUEST FORGERY CWE-352

A cross-site request forgery condition can occur, allowing an attacker to 
change passwords of the device remotely.

CVE-2018-14783 has been assigned to this vulnerability. A CVSS v3 base score 
of 9.8 has been calculated; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.2.3 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE
SCRIPTING') CWE-79

The device is vulnerable to several cross-site scripting attacks, allowing a 
remote attacker to run arbitrary code on the device.

CVE-2018-14784 has been assigned to this vulnerability. A CVSS v3 base score 
of 9.8 has been calculated; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.2.4 INFORMATION EXPOSURE THROUGH DIRECTORY LISTING CWE-548

The directory of the device is listed openly without authentication.

CVE-2018-14785 has been assigned to this vulnerability. A CVSS v3 base score 
of 7.5 has been calculated; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Communications

COUNTRIES/AREAS DEPLOYED: Worldwide

COMPANY HEADQUARTERS LOCATION: Australia

3.4 RESEARCHER

Aditya K. Sood reported these vulnerabilities to NCCIC.

4. MITIGATIONS

NetComm Wireless has released a new firmware version to mitigate the 
vulnerabilities. Affected users may download the firmware from: 
https://support.netcommwireless.com/product/nwl-25#Firmware

NCCIC recommends users take defensive measures to minimize the risk of 
exploitation of this vulnerability. Specifically, users should:

Minimize network exposure for all control system devices and/or systems, and 
ensure that they are not accessible from the Internet.

Locate control system networks and remote devices behind firewalls, and 
isolate them from the business network.

When remote access is required, use secure methods, such as Virtual Private 
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize that VPN is only
as secure as the connected devices.

NCCIC reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended 
practices on the ICS-CERT web page. Several recommended practices are 
available for reading and download, including Improving Industrial Control 
Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly 
available on the ICS-CERT website in the Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies.

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to NCCIC for 
tracking and correlation against other incidents.

No known public exploits specifically target these vulnerabilities.

Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov

Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information: 
http://ics-cert.us-cert.gov

or incident reporting: https://ics-cert.us-cert.gov/Report-Incident?

The NCCIC continuously strives to improve its products and services. You can 
help by choosing one of the links below to provide feedback about this 
product.

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