CVE-2023-47106

2023-12-0421:15:33

CWE-20

[email protected]

web.nvd.nist.gov

114

traefik

http

reverse proxy

load balancer

vulnerability

security

nvd

cve-2023-47106

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

20.7%

JSON

Traefik is an open source HTTP reverse proxy and load balancer. When a request is sent to Traefik with a URL fragment, Traefik automatically URL encodes and forwards the fragment to the backend server. This violates RFC 7230 because in the origin-form the URL should only contain the absolute path and the query. When this is combined with another frontend proxy like Nginx, it can be used to bypass frontend proxy URI-based access control restrictions. This vulnerability has been addressed in versions 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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"
      }
    ]
  }
]