cve-2023-47124
Vulnerability from cvelistv5
Published
2023-12-04 20:20
Modified
2024-12-18 14:12
Severity ?
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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`.
References
security-advisories@github.comhttps://doc.traefik.io/traefik/https/acme/#dnschallengeProduct
security-advisories@github.comhttps://doc.traefik.io/traefik/https/acme/#httpchallengeProduct
security-advisories@github.comhttps://doc.traefik.io/traefik/https/acme/#tlschallengeProduct
security-advisories@github.comhttps://github.com/traefik/traefik/releases/tag/v2.10.6Release Notes
security-advisories@github.comhttps://github.com/traefik/traefik/releases/tag/v3.0.0-beta5Release Notes
security-advisories@github.comhttps://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2fThird Party Advisory
security-advisories@github.comhttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris
af854a3a-2127-422b-91ae-364da2661108https://doc.traefik.io/traefik/https/acme/#dnschallengeProduct
af854a3a-2127-422b-91ae-364da2661108https://doc.traefik.io/traefik/https/acme/#httpchallengeProduct
af854a3a-2127-422b-91ae-364da2661108https://doc.traefik.io/traefik/https/acme/#tlschallengeProduct
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/releases/tag/v2.10.6Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2fThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/
Impacted products
Vendor Product Version
traefik traefik Version: < 2.10.6
Version: >= 3.0.0-beta1, < 3.0.0-beta5
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   },
}


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