omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using `omniauth-auth0`. 2. You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. The issue is patched in version 2.4.1.
Advisories
Source ID Title
EUVD EUVD EUVD-2020-1445 omniauth-auth0 (rubygems) versions >= 2.3.0 and < 2.4.1 improperly validate the JWT token signature when using the `jwt_validator.verify` method. Improper validation of the JWT token signature can allow an attacker to bypass authentication and authorization. You are affected by this vulnerability if all of the following conditions apply: 1. You are using `omniauth-auth0`. 2. You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. The issue is patched in version 2.4.1.
Github GHSA Github GHSA GHSA-58r4-h6v8-jcvm Regression in JWT Signature Validation
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-04T13:08:22.896Z

Reserved: 2020-06-25T00:00:00

Link: CVE-2020-15240

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-10-21T18:15:12.813

Modified: 2024-11-21T05:05:10.037

Link: CVE-2020-15240

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses