CVE-2020-10185

CVSS V2 Medium 6.8 CVSS V3 High 8.6
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.
Overview
  • CVE ID
  • CVE-2020-10185
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2020-03-05T23:15:13
  • Last Modified Date
  • 2020-03-12T23:15:12
Weakness Enumerations
CWE URL
CWE-294 http://cwe.mitre.org/data/definitions/294.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:yubico:yubikey_one_time_password_validation_server:*:*:*:*:*:*:*:* 1 OR 2.40
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • HIGH
  • Base Score
  • 8.6
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4.7
References
Reference URL Reference 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 Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00014.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-10185
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10185
History
Created Old Value New Value Data Type Notes
2022-05-10 16:47:51 Added to TrackCVE
2022-12-04 12:09:57 2020-03-05T23:15Z 2020-03-05T23:15:13 CVE Published Date updated
2022-12-04 12:09:57 2020-03-12T23:15:12 CVE Modified Date updated
2022-12-04 12:09:57 Modified Vulnerability Status updated