漏洞信息
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Vulnerability Title
Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length
Vulnerability Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer (HEADERS with FIN / headers-only close) but still carries a nonzero Content-Length into a complete upstream HTTP/1 request with unresolved body debt. In an HTTP/1 upstream deployment where the origin replies before reading the declared body and keeps the connection reusable, the beginning of the next Envoy-generated upstream request can be consumed as the first request's body. The remaining bytes are then parsed by the origin as a new HTTP/1 request. This was reproduced as a route-bypass/desync: direct /pwn was denied by Envoy, but the second downstream H3 stream received the response for backend-parsed GET /pwn HTTP/1.1. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Vulnerability Title
Envoy Proxy Envoy 输入验证错误漏洞
Vulnerability Description
Envoy Proxy Envoy是Envoy Proxy团队的应用网关。 Envoy Proxy Envoy 1.35.11之前版本、1.36.7之前版本、1.37.3之前版本和1.38.1之前版本存在输入验证错误漏洞,该漏洞源于HTTP/3请求处理问题,可能导致下游请求被错误翻译为上游HTTP/1请求,从而造成路由绕过和请求解同步。
CVSS Information
N/A
Vulnerability Type
N/A