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[email protected]CVE-2023-47124

HistoryDec 04, 2023 - 9:15 p.m.

CVE-2023-47124

2023-12-0421:15:33

CWE-772

[email protected]

web.nvd.nist.gov

115

traefik

http reverse proxy

load balancer

cve-2023-47124

let's encrypt

tls certificates

slowloris attack

httpchallenge

tlschallenge

dnschallenge

security vulnerability

nvd

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.2%

JSON

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.

Affected configurations

Vulners

NVD

Node

traefiktraefikRange<2.10.6

traefiktraefikRange3.0.0-beta1–3.0.0-beta5

VendorProductVersionCPE
traefiktraefik*cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
traefiktraefik*cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
traefik	traefik	*	cpe:2.3:a:traefik:traefik::::::::
traefik	traefik	*	cpe:2.3:a:traefik:traefik::::::::

CNA Affected

[
  {
    "vendor": "traefik",
    "product": "traefik",
    "versions": [
      {
        "version": "< 2.10.6",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0-beta1, < 3.0.0-beta5",
        "status": "affected"
      }
    ]
  }
]