{
  "id": "CVE-2023-47124",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2023-12-04T21:15:33.850",
  "lastModified": "2023-12-04T21:15:33.850",
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "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`."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://doc.traefik.io/traefik/https/acme/#dnschallenge",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://doc.traefik.io/traefik/https/acme/#httpchallenge",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://doc.traefik.io/traefik/https/acme/#tlschallenge",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/traefik/traefik/releases/tag/v2.10.6",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-8g85-whqh-cr2f",
      "source": "security-advisories@github.com"
    },
    {
      "url": "ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/",
      "source": "security-advisories@github.com"
    }
  ]
}