Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yubico | Yubikey One Time Password Validation Server | < 2.40 |
Related Weaknesses (CWE)
References
- https://github.com/Yubico/yubikey-val/releases/tag/yubikey-val-2.40Release NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00014.html
- https://www.yubico.com/support/security-advisories/ysa-2020-01/ExploitVendor Advisory
- https://github.com/Yubico/yubikey-val/releases/tag/yubikey-val-2.40Release NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00014.html
- https://www.yubico.com/support/security-advisories/ysa-2020-01/ExploitVendor Advisory
FAQ
What is CVE-2020-10185?
CVE-2020-10185 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 va...
How severe is CVE-2020-10185?
CVE-2020-10185 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-10185?
Check the references section above for vendor advisories and patch information. Affected products include: Yubico Yubikey One Time Password Validation Server.