CVE-2023-47106

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1	Not Applicable
https://github.com/traefik/traefik/releases/tag/v2.10.6	Release Notes
https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5	Release Notes
https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:traefik:traefik::::::::
	cpe:2.3:a:traefik:traefik:3.0.0:beta1::::::
	cpe:2.3:a:traefik:traefik:3.0.0:beta2::::::
	cpe:2.3:a:traefik:traefik:3.0.0:beta3::::::
	cpe:2.3:a:traefik:traefik:3.0.0:beta4::::::

History

No history.

Information

Published : 2023-12-04 21:15

Updated : 2023-12-07 21:01

NVD link : CVE-2023-47106

Mitre link : CVE-2023-47106

CVE.ORG link : CVE-2023-47106

JSON object : View

Products Affected

traefik

traefik

CWE

NVD-CWE-Other CWE-20

Improper Input Validation

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