Support Announcements
MediaTek Wi-Fi WPS/IEEE-1905 Vulnerabilities:BadMesher & Authentication Flooding

Overview

 

On October 29, 2021, D-Link became aware of a number of potential MediaTek WiFi vulnerabilities involving Wi-Fi WPS/IEEE-1905 called BadMesher & Authentication Flooding.

 

As soon as D-Link was made aware of the reported security issues, we had promptly started our investigation and began developing security patches.

D-Link takes the issues of network security and user privacy very seriously. We have a dedicated task force and product management team on call to address evolving security issues and implement appropriate security measures.

  

Report information  

 

            - BadMesher: New Attack Surfaces of Wi-Fi Mesh Network. A Black Hat Briefing publicly disclose the technical details on some of the Wi-Fi Mesh vulnerabilities in MediaTek Wi-Fi chipsets that could allow a proximate attacker (within Wi-Fi range of both the client device and the access point) to inject malicious packets containing illegal WPS IE and might cause device reboot, denial of service or possible escalation of privilege.

 

                 - MediaTek Information: Link

 

                 - Black Hat BadMesher Briefing: Link

                   - CVE-2021-32467 : Out-of-bounds Read

                   - CVE-2021-32468 : Out-of-bounds Read

                   - CVE-2021-32469 : Out-of-bounds Read

                   - CVE-2021-35055 : Out-of-bounds Write

                   - CVE-2021-37560 : Out-of-bounds Write

                   - CVE-2021-37561 : Out-of-bounds Write

                   - CVE-2021-37562 : Out-of-bounds Read

                   - CVE-2021-37563 : Out-of-bounds Write

                   - CVE-2021-37584 : Out-of-bounds Write 

 

            - Wi-Fi Authentication Flooding Vulnerabilities
 

                 - MediaTek Information: Link 

 

                    - CVE-2021-41788 : Mishandle attempts at Wi-Fi authentication flooding

 

 


Affected Models

 

Model Hardware Revision  Region Affected FW Fixed FW Recommendation  Last Updated
COVR-L1900 All A1 Hardware Revisions Worldwide v1.03B03 & Below Under Development Est. Release End Feb 2022 02/22/2022
DAP-1755 All A2 Hardware Revisions Worldwide v1.04B01 & Below Under Development Est. Release End May 2022
02/22/2022
DAP-1900 All A1 Hardware Revisions (Non-US) v1.00B01 & Below Under Development Est. Release End Mar 2022 02/22/2022
DAP-1950 All A2 Hardware Revisions (Non-US)  v1.04B01 & Below Under Development Est. Release End April 2022 02/22/2022
DAP-1955 All A2 Hardware Revisions Worldwide  v1.03B03 Beta02 Hotifx & Below Under Development Est. Release End April 2022 02/22/2022
DIR-1750 All A1 Hardware Revisions Worldwide v1.03B03 Beta03 Hotifx & Below v1.13B01 Beta01 Download and Update Manually 02/14/2022
DIR-L1900 All A1 Hardware Revisions Worldwide  v1.03B03 & Below Under Development Est. Release End Mar 2022 02/22/2022
DIR-1950 All A1 Hardware Revisions Worldwide v1.00B17 & Below v1.13B01 Beta04 Download and Update Manually 01/18/2022

  

Regarding Security patch for your D-Link Devices
 
Firmware updates address the security vulnerabilities in affected D-Link devices. D-Link will update this continually and we strongly recommend all users to install the relevant updates.
 
Please note that this is a device beta software, beta firmware, or hot-fix release which is still undergoing final testing before its official release. The beta software, beta firmware, or hot-fix is provided on an “as is” and “as available” basis and the user assumes all risk and liability for use thereof. D-Link does not provide any warranties, whether express or implied, as to the suitability or usability of the beta firmware. D-Link will not be liable for any loss, whether such loss is direct, indirect, special or consequential, suffered by any party as a result of their use of the beta firmware.
 
As there are different hardware revisions on our products, please check this on your device before downloading the correct corresponding firmware update. The hardware revision information can usually be found on the product label on the underside of the product next to the serial number. Alternatively, they can also be found on the device web configuration.