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MitreCVE-2020-10185

HistoryMar 05, 2020 - 11:15 p.m.

CVE-2020-10185

2020-03-0523:15:13

CWE-294

mitre

web.nvd.nist.gov

133

cve

yubikey

validation server

sync endpoint

replay attack

otp

nvd

security vulnerability

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

AI Score

8.2

Confidence

High

EPSS

0.007

Percentile

80.2%

JSON

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 configurations

Nvd

Node

yubicoyubikey_one_time_password_validation_serverRange<2.40

VendorProductVersionCPE
yubicoyubikey_one_time_password_validation_server*cpe:2.3:a:yubico:yubikey_one_time_password_validation_server:*:*:*:*:*:*:*:*