Vulnerability identifier: #VU88546
Vulnerability 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:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Traefik
Server applications /
Other server solutions
Vendor: Containous
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
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.