CVE-2020-10185: High severity yubico yubikey one time password validation server vulnerability
The sync endpoint in YubiKey Validation Server before 2.40 allows remote attackers to replay an OTP. NOTE: this issue is potentially relevant to persons outside Yubico who operate a self-hosted OTP validation service with a non-default configuration such as an open sync pool; the issue does NOT affect YubiCloud.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-10185?
CVE-2020-10185 is a vulnerability in YubiKey Validation Server before version 2.40 that allows remote attackers to replay an OTP (One-Time Password).
How severe is CVE-2020-10185?
CVE-2020-10185 has a severity rating of 8.6 (high).
How can an attacker exploit CVE-2020-10185?
An attacker can exploit CVE-2020-10185 by replaying an OTP (One-Time Password) to gain unauthorized access.
Is Yubico YubiKey One Time Password Validation Server affected by CVE-2020-10185?
Yes, Yubico YubiKey One Time Password Validation Server versions up to and excluding 2.40 are affected by CVE-2020-10185.
How can I mitigate CVE-2020-10185?
To mitigate CVE-2020-10185, it is recommended to update YubiKey Validation Server to version 2.40 or higher.