PT-2019-18678 · Auth0 · Auth0-Wcf-Service-Jwt

Conny Dahlgren · Published 2019-04-11 · Updated 2020-08-24 · CVE-2019-7644

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Auth0 Auth0-WCF-Service-JWT versions prior to 1.0.4

Description The issue allows an attacker to forge an arbitrary JWT token that will be accepted by the vulnerable application if the error message containing the expected JWT signature is presented to them. This occurs when the application cannot successfully validate the JWT signature.

Recommendations For versions prior to 1.0.4, update to version 1.0.4 or later to resolve the issue. As a temporary workaround, consider restricting access to error messages that contain sensitive information such as the expected JWT signature.

Fix

Generation of Error Message Containing Sensitive Information

Weakness Enumeration

CWE-209

Related Identifiers

CVE-2019-7644

GHSA-QPVX-GPQM-G98J

Affected Products

Auth0-Wcf-Service-Jwt

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2019-7644 · Security Note
• https://osv.dev/vulnerability/CVE-2019-7644 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-qpvx-gpqm-g98j · Vendor Advisory
• https://auth0.com/docs/security/bulletins/cve-2019-7644 · Vendor Advisory
• https://github.com/advisories/GHSA-qpvx-gpqm-g98j · Note