CVE-2020-15129: Open redirect in Traefik
First published: Thu Jul 30 2020(Updated: )
In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the "X-Forwarded-Prefix" header. The Traefik API dashboard component doesn't validate that the value of the header "X-Forwarded-Prefix" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Traefik Traefik | <1.7.26 | |
| Traefik Traefik | >=2.2.0<2.2.8 | |
| Traefik Traefik | =2.3.0 | |
| Traefik Traefik | =2.3.0-rc1 | |
| Traefik Traefik | =2.3.0-rc2 |
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Reference Links
- https://github.com/containous/traefik/commit/e63db782c11c7b8bfce30be4c902e7ef8f9f33d2
- https://github.com/containous/traefik/pull/7109
- https://github.com/containous/traefik/releases/tag/v1.7.26
- https://github.com/containous/traefik/releases/tag/v2.2.8
- https://github.com/containous/traefik/releases/tag/v2.3.0-rc3
- https://github.com/containous/traefik/security/advisories/GHSA-6qq8-5wq3-86rp
Frequently Asked Questions
What is CVE-2020-15129?
CVE-2020-15129 is a potential open redirect vulnerability in Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3.
How does CVE-2020-15129 affect Traefik?
CVE-2020-15129 affects Traefik's handling of the "X-Forwarded-Prefix" header, allowing potential open redirects.
What is the severity of CVE-2020-15129?
The severity of CVE-2020-15129 is medium with a CVSS score of 4.7.
How can I fix CVE-2020-15129?
To fix CVE-2020-15129, upgrade to Traefik versions 1.7.26, 2.2.8, or 2.3.0-rc3 or later.
Where can I find more information about CVE-2020-15129?
You can find more information about CVE-2020-15129 on its GitHub page and Traefik's official releases page.
- agent/references
- agent/type
- agent/remedy
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/weakness
- agent/author
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/severity
- agent/last-modified-date
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/traefik
- canonical/traefik traefik
- version/traefik traefik/2.2.0
- version/traefik traefik/2.3.0
- version/traefik traefik/2.3.0-rc1
- version/traefik traefik/2.3.0-rc2