First published: 2022-02-03
NETGEAR is aware of a pre-authentication command injection security vulnerability on EX6100v1 and a pre-authentication stack overflow security vulnerability on multiple products. These vulnerabilities require access to your local area network to be exploited.
NETGEAR has released fixes for these security vulnerabilities on the following product models:
Cable Modem Router
- CAX80 fixed in firmware version 2.1.3.7
Aircard
- DC112A fixed in firmware version 1.0.0.64
NETGEAR will not release fixes for these vulnerabilities on the following affected product as it is outside of the security support period:
Extender
To download the latest firmware for your NETGEAR product:
- Visit NETGEAR Support.
- Start typing your model number in the search box, then select your model from the drop-down menu as soon as it appears.
If you do not see a drop-down menu, make sure that you entered your model number correctly, or select a product category to browse for your product model.
- Click Downloads.
- Under Current Versions, select the first download whose title begins with Firmware Version.
- Click Release Notes.
- Follow the instructions in the firmware release notes to download and install the new firmware.
For cable products, new firmware is released by your Internet service provider after NETGEAR releases it to them. Firmware fixes for the following cable products have been released to all service providers:
To see the latest firmware version for your cable product, visit What’s the latest firmware version of my NETGEAR cable modem or modem router?.
To check your cable product’s current firmware version, follow the steps in this knowledge base article: How do I view the firmware version of my cable modem or modem router?.
Workarounds
No workarounds are available for these vulnerabilities.
Disclaimer
This document is provided on an "as is" basis and does not imply any kind of guarantee or warranty, including the warranties of merchantability or fitness for a particular use. Your use of the information in the document or materials linked from the document is at your own risk. NETGEAR reserves the right to change or update this document at any time. NETGEAR expects to update this document as new information becomes available.
The pre-authentication command injection and pre-authentication stack overflow security vulnerabilities remain if you do not complete all recommended steps. NETGEAR is not responsible for any consequences that could have been avoided by following the recommendations in this notification.
Acknowledgements
huanBIn Ruan
Common Vulnerability Scoring System
Rating: Medium – High
Score: 6.9 – 7.7
Vector:
- PSV-2021-0282: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
- PSV-2021-0288: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Best Practices for Updating Firmware
We recommend that you keep your NETGEAR devices up to date with the latest firmware. Firmware updates contain security fixes, bug fixes, and new features for your NETGEAR products.
If your product is supported by one of our apps, using the app is the easiest way to update your firmware:
- Orbi products: NETGEAR Orbi app
- NETGEAR WiFi routers: NETGEAR Nighthawk app
- Some NETGEAR Business products: NETGEAR Insight app (firmware updates through the app are available only for Insight subscribers)
If your product is not supported by one of our apps, you can always update your firmware manually by following the instructions in your product’s user manual, firmware release notes, or product support page. For more information, see Where can I find information about my NETGEAR product?.
Contact
We appreciate and value having security concerns brought to our attention. NETGEAR constantly monitors for both known and unknown threats. Being pro-active rather than re-active to emerging security issues is fundamental for product support at NETGEAR.
It is NETGEAR's mission to be the innovative leader in connecting the world to the internet. To achieve this mission, we strive to earn and maintain the trust of those that use NETGEAR products for their connectivity.
To report a security vulnerability, visit https://bugcrowd.com/netgear.
If you are a NETGEAR customer with a security-related support concern, you can contact NETGEAR customer support at techsupport.security@netgear.com.
For all other issues, visit http://www.netgear.com/about/security/.
Revision History
2022-02-03: Published advisory
Last Updated:02/03/2022
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Article ID: 000064615