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Security Database

CVE

CWE

Training

CVE-2020-15240

Published: Oct 21, 2020

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

7.4

HIGH

Description

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.

Vendor	Product	Versions
auth0	omniauth-auth0	affected `>= 2.3.0, <2.4.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

References

https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm

x_refsource_CONFIRM

https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a

x_refsource_MISC

https://rubygems.org/gems/omniauth-auth0

x_refsource_MISC

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