Headline
CVE-2022-46153: Release v2.9.6 · traefik/traefik
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
CVEs:
- https://www.cve.org/CVERecord?id=CVE-2022-23469
- https://www.cve.org/CVERecord?id=CVE-2022-46153
- https://www.cve.org/CVERecord?id=CVE-2022-41717
Bug fixes:
- [acme] Update go-acme/lego to v4.9.1 (#9550 by @ldez)
- [k8s/crd] Support of allowEmptyServices in TraefikService (#9424 by @jeromeguiard)
- [logs] Remove logs of the request (#9574 by @ldez)
- [plugins] Increase the timeout on plugin download (#9529 by @ldez)
- [server] Update golang.org/x/net (#9582 by @ldez)
- [tls] Handle broken TLS conf better (#9572 by @mpl)
- [tracing] Update DataDog tracing dependency to v1.43.1 (#9526 by @rtribotte)
- [webui] Add missing serialNumber passTLSClientCert option to middleware panel (#9539 by @rtribotte)
Documentation:
- [docker] Add networking example (#9542 by @janik)
- [hub] Add information about the Hub Agent (#9560 by @nmengin)
- [k8s/helm] Update Helm installation section (#9564 by @mloiseleur)
- [middleware] Clarify PathPrefix matcher greediness (#9519 by @mpl)
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### Impact There is a potential vulnerability in Traefik displaying the Authorization header in its debug logs. Traefik uses [oxy](https://github.com/vulcand/oxy) to provide the following features: - Round Robin: https://doc.traefik.io/traefik/routing/services/#weighted-round-robin-service - Buffering: https://doc.traefik.io/traefik/middlewares/http/buffering/ - Circuit Breaker: https://doc.traefik.io/traefik/middlewares/http/circuitbreaker/ - In-Flight Requests: https://doc.traefik.io/traefik/middlewares/http/inflightreq/ In such cases, if the log level is set to DEBUG, the credentials provided using the Authorization header are displayed in the debug logs: ``` level=debug msg="vulcand/oxy/roundrobin/rr: completed ServeHttp on request" Request="{\\"Method\\":\\"POST\\",\\"URL\\":{\\"Scheme\\":\\"\\",\\"Opaque\\":\\"\\",\\"User\\":null,\\"Host\\":\\"\\",\\"Path\\":\\"/<redacted>/<redacted>\\",\\"RawPath\\":\\"\\",\\"ForceQuery\\":false,\\"RawQuery\\":\\"\\",\\"Fragment\\":\\"\\",\...
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