Description (CNA)
Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. In versions prior to 2.11.24, 3.3.6, and 3.4.0-rc2. There is a potential vulnerability in Traefik managing the requests using a PathPrefix, Path or PathRegex matcher. When Traefik is configured to route the requests to a backend using a matcher based on the path, if the URL contains a /../ in its path, it’s possible to target a backend, exposed using another router, by-passing the middlewares chain. This issue has been patched in versions 2.11.24, 3.3.6, and 3.4.0-rc2. A workaround involves adding a `PathRegexp` rule to the matcher to prevent matching a route with a `/../` in the path.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| traefik / traefik | affected < 2.11.24; affected < 3.3.6; affected >= 3.4.0-rc1, < 3.4.0-rc2 |
CWE
CWE-22
References
- https://github.com/traefik/traefik/security/advisories/GHSA-6p68-w45g-48j7
- https://github.com/traefik/traefik/pull/11684
- https://github.com/traefik/traefik/releases/tag/v2.11.24
- https://github.com/traefik/traefik/releases/tag/v3.3.6
- https://github.com/traefik/traefik/releases/tag/v3.4.0-rc2
ADP enrichment
No English description supplied.
No references supplied.