CVSS 3.1 Score 5.9 of 10 (medium)


Published Dec 4, 2023
Updated: Dec 7, 2023
CWE ID 772


CVE-2023-47124 is a vulnerability affecting Traefik, an open source HTTP reverse proxy and load balancer. The vulnerability occurs when Traefik is configured to use the `HTTPChallenge` for Let's Encrypt TLS certificates. Attackers can exploit a delay in solving the challenge to carry out a slowloris attack. The vulnerability has been patched in versions 2.10.6 and 3.0.0-beta5, and users are advised to upgrade. If upgrading is not possible, replacing the `HTTPChallenge` with either the `TLSChallenge` or the `DNSChallenge` is recommended. This vulnerability poses a medium-level risk to organizations as it can potentially lead to service disruption or denial-of-service attacks.


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