Open Redirect Affecting traefik package, versions <2.2.8-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.97% (84th percentile)

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  • Snyk IDSNYK-ALPINE321-TRAEFIK-8490029
  • published6 Dec 2024
  • disclosed30 Jul 2020

Introduced: 30 Jul 2020

CVE-2020-15129  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 traefik to version 2.2.8-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream traefik package and not the traefik package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

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.

CVSS Scores

version 3.1