漏洞信息
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Vulnerability Title
Traefik mTLS bypass via fragmented ClientHello SNI extraction failure
Vulnerability Description
Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 are vulnerable to mTLS bypass through the TLS SNI pre-sniffing logic related to fragmented ClientHello packets. When a TLS ClientHello is fragmented across multiple records, Traefik's SNI extraction may fail with an EOF and return an empty SNI. The TCP router then falls back to the default TLS configuration, which does not require client certificates by default. This allows an attacker to bypass route-level mTLS enforcement and access services that should require mutual TLS authentication. This issue is patched in versions 2.11.41, 3.6.11 and 3.7.0-ea.2.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Vulnerability Type
认证机制不恰当
Vulnerability Title
Traefik 安全漏洞
Vulnerability Description
Traefik是Traefik开源的一款反向代理与负载均衡工具。 Traefik 2.11.40及之前版本、3.0.0-beta1至3.6.11版本和3.7.0-ea.1版本存在安全漏洞,该漏洞源于TLS SNI预嗅探逻辑问题,可能导致绕过路由级mTLS强制执行。
CVSS Information
N/A
Vulnerability Type
N/A