Описание
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.
A flaw was found in Traefik, an HTTP reverse proxy and load balancer. An unauthenticated client can exploit this vulnerability by sending a specific 8-byte Postgres SSLRequest (STARTTLS) prelude and then intentionally delaying further communication. This action bypasses Traefik's configured read timeouts, causing connections to remain open indefinitely. The primary consequence is a Denial of Service, as the server's resources become exhausted by these persistent, non-responsive connections.
Отчет
This is an IMPORTANT denial of service flaw in Traefik, an HTTP reverse proxy and load balancer, affecting Red Hat OpenShift Dev Spaces. An unauthenticated client can exploit this by sending a specific STARTTLS request and then stalling, which bypasses configured read timeouts and causes connections to remain open indefinitely, leading to resource exhaustion.
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, there is a potential vulnerability in Traefik managing STARTTLS requests. An unauthenticated client can bypass Traefik entrypoint respondingTimeouts.readTimeout by sending the 8-byte Postgres SSLRequest (STARTTLS) prelude and then stalling, causing connections to remain open indefinitely, leading to a denial of service. This vulnerability is fixed in 3.6.8.
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.8, th ...
Traefik: TCP readTimeout bypass via STARTTLS on Postgres
EPSS
7.5 High
CVSS3