CVE-2020-15129: Traefik vulnerable to Open Redirect via handling of X-Forwarded-Prefix header

CVE-2020-15129 · Severity: low · CVSS 3.1 · Published 2022-02-11

Traefik vulnerable to Open Redirect via handling of X-Forwarded-Prefix header

Technologies: github.com/containous/traefik (Go), github.com/containous/traefik/v2 (Go), github.com/traefik/traefik (Go), github.com/traefik/traefik/v2 (Go). Vendors: Go.

Quick answers

Is CVE-2020-15129 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-15129 being exploited in the wild.
How severe is CVE-2020-15129?
Low severity, with a CVSS score of 3.1, published 11 February 2022.
Which products and versions are affected?
github.com/containous/traefik (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26; github.com/containous/traefik/api (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26; github.com/containous/traefik/v2 (Go) SEMVER:introduced=0,fixed=2.2.8; github.com/containous/traefik/v2/pkg/api (Go) SEMVER:introduced=0,fixed=2.2.8; and 4 more.
Is there a fix for CVE-2020-15129?
Yes. github.com/containous/traefik (Go): upgrade to 1.7.26 or later; github.com/containous/traefik/api (Go): upgrade to 1.7.26 or later; github.com/containous/traefik/v2 (Go): upgrade to 2.2.8 or later; github.com/containous/traefik/v2/pkg/api (Go): upgrade to 2.2.8 or later; github.com/traefik/traefik (Go): upgrade to 1.7.26 or later; github.com/traefik/traefik/api (Go): upgrade to 1.7.26 or later; github.com/traefik/traefik/v2 (Go): upgrade to 2.3.0-rc6 or later; github.com/traefik/traefik/v2/pkg/api (Go): upgrade to 2.3.0-rc6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-15129?
Check whether you run github.com/containous/traefik (Go), github.com/containous/traefik/api (Go), github.com/containous/traefik/v2 (Go) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/containous/traefik (Go): upgrade to 1.7.26 or later
    go get github.com/containous/traefik@v1.7.26
  • github.com/containous/traefik/api (Go): upgrade to 1.7.26 or later
    go get github.com/containous/traefik/api@v1.7.26
  • github.com/containous/traefik/v2 (Go): upgrade to 2.2.8 or later
    go get github.com/containous/traefik/v2@v2.2.8
  • github.com/containous/traefik/v2/pkg/api (Go): upgrade to 2.2.8 or later
    go get github.com/containous/traefik/v2/pkg/api@v2.2.8
  • github.com/traefik/traefik (Go): upgrade to 1.7.26 or later
    go get github.com/traefik/traefik@v1.7.26
  • github.com/traefik/traefik/api (Go): upgrade to 1.7.26 or later
    go get github.com/traefik/traefik/api@v1.7.26
  • github.com/traefik/traefik/v2 (Go): upgrade to 2.3.0-rc6 or later
    go get github.com/traefik/traefik/v2@v2.3.0-rc6
  • github.com/traefik/traefik/v2/pkg/api (Go): upgrade to 2.3.0-rc6 or later
    go get github.com/traefik/traefik/v2/pkg/api@v2.3.0-rc6

Affected products

  • github.com/containous/traefik (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26
  • github.com/containous/traefik/api (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26
  • github.com/containous/traefik/v2 (Go) SEMVER:introduced=0,fixed=2.2.8
  • github.com/containous/traefik/v2/pkg/api (Go) SEMVER:introduced=0,fixed=2.2.8
  • github.com/traefik/traefik (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26
  • github.com/traefik/traefik/api (Go) SEMVER:introduced=1.5.0-rc5,fixed=1.7.26
  • github.com/traefik/traefik/v2 (Go) SEMVER:introduced=0,fixed=2.3.0-rc6
  • github.com/traefik/traefik/v2/pkg/api (Go) SEMVER:introduced=0,fixed=2.3.0-rc6

Identifiers

  • CVE-2020-15129
  • GHSA-6qq8-5wq3-86rp

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