CVE-2020-10134 Bluetooth devices supporting LE and specific BR/EDR implementations are vulnerable to method confusion attacks
An adjacent attacker can bypass Bluetooth authentication via method confusion, gaining unauthorized access to device operations and data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-10134?
CVE-2020-10134 is a medium-severity authentication bypass vulnerability in Bluetooth LE, published on 19 May 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Pairing in Bluetooth® Core v5.2 and earlier may permit an unauthenticated attacker to acquire credentials with two pairing devices via adjacent access when the unauthenticated user initiates different pairing methods in each peer device and an end-user erroneously completes both pairing procedures with the MITM using the confirmation number of one peer as the passkey of the other. An adjacent, unauthenticated attacker could be able to initiate any Bluetooth operation on either attacked device exposed by the enabled Bluetooth profiles. This exposure may be limited when the user must authorize certain access explicitly, but so long as a user assumes that it is the intended remote device requesting permissions, device-local protections may be weakened.
Which versions are affected by CVE-2020-10134?
It affects 1 product.
Products include Bluetooth Bluetooth Core.
How do I fix CVE-2020-10134?
No fix has been published for CVE-2020-10134 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-2020-10134 being exploited?
There is no known exploitation of CVE-2020-10134 in the wild and no public exploit code.
Other vulnerabilities in Bluetooth LE
Sources
Also known as GHSA-4fx5-wvjj-h2jp, UBUNTU-CVE-2020-10134.