CVE-2023-47124

Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://doc.traefik.io/traefik/https/acme/#dnschallenge	Product
https://doc.traefik.io/traefik/https/acme/#httpchallenge	Product
https://doc.traefik.io/traefik/https/acme/#tlschallenge	Product
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-8g85-whqh-cr2f	Third Party Advisory
ttps://www.cloudflare.com/learning/ddos/ddos-attack-tools/slowloris/	Broken Link

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-2023-47124

Mitre link : CVE-2023-47124

CVE.ORG link : CVE-2023-47124

JSON object : View

Products Affected

traefik

traefik

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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