CVE-2020-15240
Auth0 OmniAuth AuthBypass-Vulnerability
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.
INFO
Published Date :
Oct. 21, 2020, 6:15 p.m.
Last Modified :
Nov. 18, 2021, 4:21 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-15240.
| URL | Resource |
|---|---|
| https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a | Patch Third Party Advisory |
| https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm | Third Party Advisory |
| https://rubygems.org/gems/omniauth-auth0 | Product Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15240 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15240 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Nov. 18, 2021
Action Type Old Value New Value Added CWE NIST CWE-347 -
Initial Analysis by [email protected]
Oct. 30, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a No Types Assigned https://github.com/auth0/omniauth-auth0/commit/fd3a14f4ccdfbc515d1121d6378ff88bf55a7a7a Patch, Third Party Advisory Changed Reference Type https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm No Types Assigned https://github.com/auth0/omniauth-auth0/security/advisories/GHSA-58r4-h6v8-jcvm Third Party Advisory Changed Reference Type https://rubygems.org/gems/omniauth-auth0 No Types Assigned https://rubygems.org/gems/omniauth-auth0 Product, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:auth0:omniauth-auth0:*:*:*:*:*:ruby:*:* versions from (including) 2.3.0 up to (excluding) 2.4.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15240 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-15240
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.30 }} 0.08%
score
0.69767
percentile