CVE-2020-10185

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 v3.0 8.6 HIGH
CVSS v2.0 6.8 MEDIUM

8.6^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
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	Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00014.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:yubico:yubikey_one_time_password_validation_server:*:*:*:*:*:*:*:*

Information

Published : 2020-03-05 15:15

Updated : 2020-03-12 16:15

NVD link : CVE-2020-10185

Mitre link : CVE-2020-10185

JSON object : View

CWE

CWE-294

Authentication Bypass by Capture-replay

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Products Affected

yubico

yubikey_one_time_password_validation_server

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