CVE-2023-47124

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`.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub_MCNA
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 34%
VendorProductVersion
traefiktraefik
𝑥
≤ 2.10.5
traefiktraefik
3.0.0:beta1
traefiktraefik
3.0.0:beta2
traefiktraefik
3.0.0:beta3
traefiktraefik
3.0.0:beta4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://doc.traefik.io/traefik/https/acme/#dnschallenge
https://doc.traefik.io/traefik/https/acme/#httpchallenge
https://doc.traefik.io/traefik/https/acme/#tlschallenge
https://github.com/traefik/traefik/releases/tag/v2.10.6
https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5
https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f
https://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris
https://doc.traefik.io/traefik/https/acme/#dnschallenge
https://doc.traefik.io/traefik/https/acme/#httpchallenge
https://doc.traefik.io/traefik/https/acme/#tlschallenge
https://github.com/traefik/traefik/releases/tag/v2.10.6
https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5
https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f
ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/