CVE-2023-47106
Traefik HTTP Reverse Proxy RFC 7230 URL Fragment Bypass Vulnerability
Description
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.
INFO
Published Date :
Dec. 4, 2023, 9:15 p.m.
Last Modified :
Dec. 7, 2023, 9:01 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.5
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-47106
.
URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-47106
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-47106
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Dec. 07, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Changed Reference Type https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1 No Types Assigned https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1 Not Applicable Changed Reference Type https://github.com/traefik/traefik/releases/tag/v2.10.6 No Types Assigned https://github.com/traefik/traefik/releases/tag/v2.10.6 Release Notes Changed Reference Type https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 No Types Assigned https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 Release Notes Changed Reference Type https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm No Types Assigned https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm Exploit, Third Party Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* versions up to (including) 2.10.5 *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:*:*:*:*:*:* -
CVE Received by [email protected]
Dec. 04, 2023
Action Type Old Value New Value Added Description 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. Added Reference GitHub, Inc. https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm [No types assigned] Added Reference GitHub, Inc. https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1 [No types assigned] Added Reference GitHub, Inc. https://github.com/traefik/traefik/releases/tag/v2.10.6 [No types assigned] Added Reference GitHub, Inc. https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5 [No types assigned] Added CWE GitHub, Inc. CWE-20 Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-47106
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-47106
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.26486
percentile