CVSS: 8.1EPSS: 0%CPEs: 2EXPL: 0CVE-2021-21299 – Multiple Transfer-Encoding headers misinterprets request payload
https://notcve.org/view.php?id=CVE-2021-21299
hyper is an open-source HTTP library for Rust (crates.io). In hyper from version 0.12.0 and before versions 0.13.10 and 0.14.3 there is a vulnerability that can enable a request smuggling attack. The HTTP server code had a flaw that incorrectly understands some requests with multiple transfer-encoding headers to have a chunked payload, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that understands the request payload boundary differently can result in "request smuggling" or "desync attacks". To determine if vulnerable, all these things must be true: 1) Using hyper as an HTTP server (the client is not affected), 2) Using HTTP/1.1 (HTTP/2 does not use transfer-encoding), 3) Using a vulnerable HTTP proxy upstream to hyper. • https://crates.io/crates/hyper https://github.com/hyperium/hyper/commit/8f93123efef5c1361086688fe4f34c83c89cec02 https://github.com/hyperium/hyper/security/advisories/GHSA-6hfq-h8hq-87mf https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn https://rustsec.org/advisories/RUSTSEC-2021-0020.html • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-35863
https://notcve.org/view.php?id=CVE-2020-35863
An issue was discovered in the hyper crate before 0.12.34 for Rust. HTTP request smuggling can occur. Remote code execution can occur in certain situations with an HTTP server on the loopback interface. Se detectó un problema en la crate hyper versiones anteriores a 0.12.34 para Rust. Un tráfico no autorizado de peticiones HTTP puede ocurrir. • https://rustsec.org/advisories/RUSTSEC-2020-0008.html • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •