Fallos del tipo CWE-444

320 resultados

Interpretação inconsistente de requisições HTTP (HTTP Request Smuggling)

Ocorre quando proxies, load balancers ou firewalls interpretam requisições HTTP de forma diferente do servidor backend. Um atacante explora essa discrepância enviando requisições ambíguas (com headers conflitantes ou corpo malformado) que são parseadas de modos distintos por camadas diferentes da infraestrutura, permitindo contornar controles de segurança ou injetar requisições não autorizadas no backend.

Ejemplo

Um proxy usa Content-Length para determinar o fim da requisição, enquanto o servidor backend usa Transfer-Encoding: chunked. O atacante envia uma requisição que contém dois requests: um legítimo (que passa pelo proxy) e um malicioso embutido no corpo (que o backend processa como requisição separada). Resultado: bypass de WAF ou injeção de cache envenenado.

Cómo mitigar

Normalize o parsing: garanta que todas as camadas (proxy, load balancer, aplicação) usem as mesmas regras RFC 7230 para interpretar headers Content-Length e Transfer-Encoding; desabilite métodos ambíguos no proxy (reject requisições com ambos os headers); mantenha proxies e servidores sincronizados em versões e configurações de parsing HTTP.

CVE-2024-32638MEDIUMApache APISIX: Forward-Auth Request SmugglingEPSS 1.1%CVE-2021-39214HIGHLacking Protection against HTTP Request Smuggling in mitmproxyEPSS 1.1%CVE-2023-51747HIGHSMTP smuggling in Apache JamesEPSS 1.0%CVE-2024-23829MEDIUMaiohttp's HTTP parser (the python one, not llhttp) still overly lenient about separatorsEPSS 1.0%CVE-2017-12158—It was found that Keycloak would accept a HOST header URL in the admin console and use it to determine web resource locations. An attacker cEPSS 1.0%CVE-2024-53008MEDIUMInconsistent interpretation of HTTP requests ('HTTP Request/Response Smuggling') issue exists in HAProxy. If this vulnerability is exploitedEPSS 1.0%CVE-2020-26281MEDIUMrequest smuggling in async-h1EPSS 1.0%CVE-2020-10719MEDIUMA flaw was found in Undertow in versions before 2.1.1.Final, regarding the processing of invalid HTTP requests with large chunk sizes. This EPSS 1.0%CVE-2023-38522HIGHApache Traffic Server: Incomplete field name check allows request smugglingEPSS 1.0%CVE-2021-32715LOWLenient Parsing of Content-Length Header When Prefixed with Plus SignEPSS 1.0%CVE-2024-35161CRITICALApache Traffic Server: Incomplete check for chunked trailer section allows request smugglingEPSS 1.0%CVE-2024-21647MEDIUMHTTP Request/Response Smuggling in pumaEPSS 1.0%CVE-2024-10264HIGHHTTP Request Smuggling in netease-youdao/qanythingEPSS 1.0%CVE-2024-8925LOWErroneous parsing of multipart form dataEPSS 0.9%CVE-2021-41732HIGHAn issue was discovered in zeek version 4.1.0. There is a HTTP request splitting vulnerability that will invalidate any ZEEK HTTP based secuEPSS 0.9%CVE-2026-6324MEDIUMLibsoup: libsoup: http request smuggling via unsigned to signed conversion errorEPSS 0.9%CVE-2023-27238CRITICALLavaLite CMS v 9.0.0 was discovered to be vulnerable to web cache poisoning.EPSS 0.9%CVE-2024-41671HIGHtwisted.web has disordered HTTP pipeline responseEPSS 0.9%CVE-2023-47627MEDIUMRequest smuggling in aiohttpEPSS 0.9%CVE-2023-40175HIGHInconsistent Interpretation of HTTP Requests in pumaEPSS 0.8%