the adversary gets physical access to the victim’s U2F device during a limited time frame,ģ. the adversary steals the login and password of a victim’s application account protected If you ever lost control of your yubikey to another party, revoke it as soon as you are able. They also need your username and password - Keep those secure and you should be ok in the short term. To exploit any Google Titan or Yubico security key, an attacker would first need to get their hands on a security key in the first place. For starters, the attack won't work remotely against a device, over the internet, or over a local network. ![]() In a 60-page PDF report, Victor Lomne and Thomas Roche, researchers with Montpellier-based NinjaLab, explain the intricacies of the attack, also tracked as CVE-2021-3011. However, while the attack sounds disastrous for Google and Yubico security key owners, its severity is not what it seems. Once obtained, the two security researchers say the encryption key, an ECDSA private key, would allow threat actors to clone Titan, YubiKey, and other keys to bypass 2FA procedures. ![]() ![]() From a report: The vulnerability allows threat actors to recover the primary encryption key used by the hardware security key to generate cryptographic tokens for two-factor authentication (2FA) operations. A duo of French security researchers has discovered a vulnerability impacting chips used inside Google Titan and YubiKey hardware security keys.
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