CVE-2020-26559

A flaw was found in the Linux kernel’s Bluetooth Mesh Profile implementation. The Mesh Provisioning procedure has a vulnerability that allows an attacker that was provisioned without access to the AuthValue to identify the AuthValue directly, without brute-forcing its value. Even when a randomly...

CVE-2020-26560

An impersonation attack vulnerability was found in the Linux kernel’s Bluetooth Mesh Profile implementation. The Mesh Provisioning procedure has a flaw that allows an attacker without knowledge of the AuthValue to spoof a provisioned device and use crafted responses that appear to possess the...

CVE-2020-26557

A flaw was found in the Linux kernel’s Bluetooth Mesh Profile implementation. The Mesh Provisioning procedure has a vulnerability that allows an attacker observing or taking part in the provisioning to brute force the AuthValue if it has a fixed value or is selected predictably or with low entrop...

CVE-2020-26556

A flaw was found in the Linux kernel’s authentication protocol in the Bluetooth® Mesh Profile Specification. A vulnerability occurs if the AuthValue is identified during the provisioning procedure, even if the AuthValue is selected randomly. This flaw allows an attacker to identify the AuthValue...

New Bluetooth Flaws Let Attackers Impersonate Legitimate Devices

Adversaries could exploit newly discovered security weaknesses in Bluetooth Core and Mesh Profile Specifications to masquerade as legitimate devices and carry out man-in-the-middle MitM attacks. "Devices supporting the Bluetooth Core and Mesh Specifications are vulnerable to impersonation attacks...

CVE-2020-26556

Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment...