CVE-2020-26560 Auth bypass in n/a

High 8.1 Published Updated

A nearby attacker can bypass Bluetooth Mesh authentication to acquire network keys, compromising the mesh network's security.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2020-26560?

CVE-2020-26560 is a high-severity authentication bypass vulnerability in n/a, published on 24 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, reflecting the authentication evidence from a Provisioner, to complete authentication without possessing the AuthValue, and potentially acquire a NetKey and AppKey.

Weakness: CWE-863

Which versions are affected by CVE-2020-26560?

It affects 1 product.

Products include Bluetooth Mesh Profile.

How do I fix CVE-2020-26560?

Apply the vendor's patch.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-26560 being exploited?

There is no known exploitation of CVE-2020-26560 in the wild and no public exploit code.

Sources

Also known as GHSA-8qgh-c754-3crv, ROOT-OS-UBUNTU-2204-CVE-2020-26560, UBUNTU-CVE-2020-26560.

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