CVE-2020-10185

Public Exploit

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.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.59%
Vendor Advisory yubico.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.yubico.com/support/security-advisories/ysa-2020-01/ exploit vendor advisory
https://github.com/Yubico/yubikey-val/releases/tag/yubikey-val-2.40 third party advisory release notes
https://lists.debian.org/debian-lts-announce/2020/03/msg00014.html mailing list

Frequently Asked Questions

What is the severity of CVE-2020-10185?
CVE-2020-10185 has been scored as a high severity vulnerability.
How to fix CVE-2020-10185?
To fix CVE-2020-10185, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-10185 being actively exploited in the wild?
It is possible that CVE-2020-10185 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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