CVE-2021-3519 Auth bypass in Desktop BIOS
Attackers can bypass boot menu authentication on Lenovo desktops if a specific BIOS setting is enabled, allowing unauthorized access to boot options.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3519?
CVE-2021-3519 is a medium-severity authentication bypass vulnerability in Lenovo Desktop BIOS, published on 12 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was reported in some Lenovo Desktop models that could allow unauthorized access to the boot menu, when the "BIOS Password At Boot Device List" BIOS setting is Yes.
Weakness: CWE-287
Which versions are affected by CVE-2021-3519?
It affects 59 products.
Products include Lenovo Ideacentre 3-07imb05 Firmware, Lenovo Ideacentre 310s-08igm Firmware, Lenovo Ideacentre 5-14imb05 Firmware, Lenovo Ideacentre 5-14iob6 Firmware, Lenovo Ideacentre 510a-15arr Firmware, Lenovo Ideacentre 510s-07icb Firmware and 53 more.
How do I fix CVE-2021-3519?
No fix has been published for CVE-2021-3519 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-3519 being exploited?
There is no known exploitation of CVE-2021-3519 in the wild and no public exploit code.
Sources
Also known as GHSA-jxph-jj63-5vcv.