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CVE-2023-47124 Detail


Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.


NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://doc.traefik.io/traefik/https/acme/#dnschallenge Product 
https://doc.traefik.io/traefik/https/acme/#httpchallenge Product 
https://doc.traefik.io/traefik/https/acme/#tlschallenge Product 
https://github.com/traefik/traefik/releases/tag/v2.10.6 Release Notes 
https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 Release Notes 
https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f Third Party Advisory 
ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/ Broken Link 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-772 Missing Release of Resource after Effective Lifetime GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
NVD Published Date:
NVD Last Modified:
GitHub, Inc.