CVE-2019-7644

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory auth0.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://auth0.com/docs/security/bulletins/cve-2019-7644 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-7644?
CVE-2019-7644 has been scored as a critical severity vulnerability.
How to fix CVE-2019-7644?
To fix CVE-2019-7644, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-7644 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-7644 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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