CVE-2020-15240 – omniauth-auth0

Package

Manager: gem
Name: omniauth-auth0
Vulnerable Version: >=2.3.0 <2.4.1

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00087 pctl0.25901

Details

Regression in JWT Signature Validation ### Overview Versions after and including `2.3.0` are improperly validating the JWT token signature when using the `JWTValidator.verify` method. Improper validation of the JWT token signature when not using the default Authorization Code Flow can allow an attacker to bypass authentication and authorization. ### Am I affected? You are affected by this vulnerability if all of the following conditions apply: - You are using `omniauth-auth0`. - You are using `JWTValidator.verify` method directly OR you are not authenticating using the SDK’s default Authorization Code Flow. ### How to fix that? Upgrade to version `2.4.1`. ### Will this update impact my users? The fix provided in this version will not affect your users.

Metadata

Created: 2020-11-03T02:31:38Z
Modified: 2023-05-16T16:04:23Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/11/GHSA-58r4-h6v8-jcvm/GHSA-58r4-h6v8-jcvm.json
CWE IDs: ["CWE-287", "CWE-347"]
Alternative ID: GHSA-58r4-h6v8-jcvm
Finding: F204
Auto approve: 1