Denial of service in Traefik

1) Input validation error

EUVDB-ID: #VU88546

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-28869

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Traefik managing requests with "Content-length" and no "body". A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Traefik: 2.0.0 - 2.10.7

External links

http://github.com/traefik/traefik/security/advisories/GHSA-4vwx-54mw-vqfw
http://github.com/traefik/traefik/commit/240b83b77351dfd8cadb91c305b84e9d22e0f9c6
http://doc.traefik.io/traefik/routing/entrypoints/#respondingtimeouts
http://github.com/traefik/traefik/releases/tag/v2.11.2
http://github.com/traefik/traefik/releases/tag/v3.0.0-rc5

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.