CVE-2024-45410

HTTP client can remove the X-Forwarded headers in Traefik

Description

Traefik is a golang, Cloud Native Application Proxy. When a HTTP request is processed by Traefik, certain HTTP headers such as X-Forwarded-Host or X-Forwarded-Port are added by Traefik before the request is routed to the application. For a HTTP client, it should not be possible to remove or modify these headers. Since the application trusts the value of these headers, security implications might arise, if they can be modified. For HTTP/1.1, however, it was found that some of theses custom headers can indeed be removed and in certain cases manipulated. The attack relies on the HTTP/1.1 behavior, that headers can be defined as hop-by-hop via the HTTP Connection header. This issue has been addressed in release versions 2.11.9 and 3.1.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 4.63% Top 15%
Vendor Advisory github.com
Affected: traefik traefik
Published at:
Updated at:

References

Link Tags
https://github.com/traefik/traefik/security/advisories/GHSA-62c8-mh53-4cqv vendor advisory
https://github.com/traefik/traefik/releases/tag/v2.11.9 release notes
https://github.com/traefik/traefik/releases/tag/v3.1.3 release notes

Frequently Asked Questions

What is the severity of CVE-2024-45410?
CVE-2024-45410 has been scored as a critical severity vulnerability.
How to fix CVE-2024-45410?
To fix CVE-2024-45410, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-45410 being actively exploited in the wild?
It is possible that CVE-2024-45410 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-45410?
CVE-2024-45410 affects traefik traefik.
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