8.6

CVE-2020-10185

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.45% 0.699
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.6 3.9 4.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-294 Authentication Bypass by Capture-replay

A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

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
https://www.yubico.com/support/security-advisories/ysa-2020-01/
Vendor Advisory
Exploit