CVE-2020-11724

Se detectó un problema en OpenResty versiones anteriores a 1.15.8.4. El archivo ngx_http_lua_subrequest.c permite un tráfico no autorizado de peticiones HTTP, como es demostrado por la API ngx.location.capture.

USN-5371-1 and USN-5371-2 fixed several vulnerabilities in nginx. This update provides the corresponding update for CVE-2020-11724 for Ubuntu 16.04 ESM. It was discovered that nginx Lua module mishandled certain inputs. An attacker could possibly use this issue to perform an HTTP Request Smuggling attack. This issue was fixed for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that nginx Lua module mishandled certain inputs. An attacker could possibly use this issue to disclose sensitive information. This issue only affects Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that nginx mishandled the use of compatible certificates among multiple encryption protocols. If a remote attacker were able to intercept the communication, this issue could be used to redirect traffic between subdomains.