Dell has released firmware updates for its systems to remediate these vulnerabilities. It is highly recommended to update any Dell systems to the latest firmware version as soon as possible to prevent the exploitation of these vulnerabilities. Binarly has released a tool called FwHunt that can help detect if a system is vulnerable to these exploits. It is recommended for users who cannot immediately patch to run this tool against Dell systems to see if they are vulnerable. If so, extra precaution will be required to secure vulnerable systems before they can be patched to fix the issue. While the exploitation of these vulnerabilities may not be detectable due to the nature of how they work, the underlying code execution behavior may be detectable. This would include common behavior that threat actors perform once they have access to a system including command and control beaconing, dumping credentials, laterally moving within an environment, and so on. Binary Defense’s Managed Detection and Response service is an excellent asset to assist with these detection needs.

https://thehackernews.com/2022/03/new-dell-bios-bugs-affect-millions-of.html

https://www.dell.com/support/kbdoc/en-us/000197057/dsa-2022-053

https://github.com/binarly-io/FwHunt/blob/main/rules/AMI/BRLY-2021-043.yml