CVE-2019-20894 — HIGH (7.5)

Q: What is CVE-2019-20894?

CVE-2019-20894 is a vulnerability with a CVSS score of 7.5 (HIGH). Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

Q: How severe is CVE-2019-20894?

CVE-2019-20894 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2019-20894?

Check the references section above for vendor advisories and patch information. Affected products include: Traefik Traefik.

Vulnerability Description

Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Traefik	Traefik	>= 2.0.0, < 2.0.1

Related Weaknesses (CWE)

CWE-295

References

https://github.com/containous/traefik/issues/5312ExploitIssue TrackingThird Party Advisory
https://github.com/containous/traefik/issues/5312ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2019-20894?

CVE-2019-20894 is a vulnerability with a CVSS score of 7.5 (HIGH). Traefik 2.x, in certain configurations, allows HTTPS sessions to proceed without mutual TLS verification in a situation where ERR_BAD_SSL_CLIENT_AUTH_CERT should have occurred.

How severe is CVE-2019-20894?

CVE-2019-20894 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-20894?

Check the references section above for vendor advisories and patch information. Affected products include: Traefik Traefik.