9.8
CRITICAL
CVE-2019-7644
Auth0 Auth0-WCF-Service-JWT Insecure JWT Signature Validation
Description

Auth0 Auth0-WCF-Service-JWT before 1.0.4 leaks the expected JWT signature in an error message when it cannot successfully validate the JWT signature. If this error message is presented to an attacker, they can forge an arbitrary JWT token that will be accepted by the vulnerable application.

INFO

Published Date :

April 11, 2019, 8:29 p.m.

Last Modified :

Aug. 24, 2020, 5:37 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-7644 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Auth0 auth0-wcf-service-jwt
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-2019-7644.

URL Resource
https://auth0.com/docs/security/bulletins/cve-2019-7644 Patch 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-2019-7644 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-7644 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
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-287 CWE-209
  • Initial Analysis by [email protected]

    Apr. 12, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://auth0.com/docs/security/bulletins/cve-2019-7644 No Types Assigned https://auth0.com/docs/security/bulletins/cve-2019-7644 Patch, Vendor Advisory
    Added CWE CWE-287
    Added CPE Configuration OR *cpe:2.3:a:auth0:auth0-wcf-service-jwt:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-7644 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-2019-7644 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.22 }} 0.00%

score

0.58626

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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