Is CVE-2019-7644 in the CISA KEV catalog?

No. CVE-2019-7644 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-7644?

CVE-2019-7644 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2019-7644?

CVE-2019-7644 has an EPSS score of 1.66% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-7644?

Upgrade auth0-wcf-service-jwt to 1.0.4 or later.

CVE & CISA-KEV Catalog

CVE-2019-7644

CRITICALEPSS 74th pctl

9.8

CVSS v3

NVD

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.

CWE-209

How to fix

Remediation Available

auth0-wcf-service-jwtNVD

Affected:< 1.0.4Fixed in:1.0.4CVE-2019-7644derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.66%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch1

auth0.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.