Weaknesses of type CWE-444

365 results

Interpretação inconsistente de requisições HTTP (HTTP Request Smuggling)

Ocorre quando um proxy, load balancer ou firewall interpreta uma requisição HTTP de forma diferente do servidor backend. O atacante injeta headers ou manipula o tamanho do corpo da requisição (via Content-Length ou Transfer-Encoding) para fazer o intermediário e o servidor final processar requisições distintas. Isso permite contornar controles de segurança, envenenar caches, sequestrar sessões de outros usuários ou executar ataques no servidor.

Example

Um atacante envia uma requisição com dois headers Content-Length conflitantes, ou mistura Content-Length com Transfer-Encoding chunked. O proxy interpreta o fim da requisição em um ponto, enquanto o servidor backend interpreta em outro, fazendo com que parte do payload do atacante seja concatenado à próxima requisição de um usuário legítimo.

How to mitigate

Normalize e valide rigorosamente headers HTTP (Content-Length, Transfer-Encoding) em proxies e servidores; use HTTP/2 ou HTTP/3 que mitigam o problema; mantenha proxy e backend sincronizados quanto à interpretação de requisições; desabilite HTTP/1.0 se possível e aplique filtros que rejeitem requisições ambíguas ou malformadas.

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-2026-70188CRITICALASP.NET Core Security Feature Bypass VulnerabilityEPSS 0.9%CVE-2024-8925LOWErroneous parsing of multipart form dataEPSS 0.9%CVE-2026-88092CRITICALASP.NET Core Tampering VulnerabilityEPSS 0.9%CVE-2024-12397HIGHIo.quarkus.http/quarkus-http-core: quarkus http cookie smugglingEPSS 0.9%CVE-2026-4700CRITICALMitigation bypass in the Networking: HTTP componentEPSS 0.9%CVE-2023-46137MEDIUMtwisted.web has disordered HTTP pipeline responseEPSS 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-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-2024-33452HIGHAn issue in OpenResty lua-nginx-module v.0.10.26 and before allows a remote attacker to conduct HTTP request smuggling via a crafted HEAD reEPSS 0.9%CVE-2023-40175HIGHInconsistent Interpretation of HTTP Requests in pumaEPSS 0.8%CVE-2026-42584HIGHNetty: HttpClientCodec response desynchronizationEPSS 0.8%CVE-2023-47641LOWInconsistent interpretation of `Content-Length` vs. `Transfer-Encoding` in aiohttpEPSS 0.8%CVE-2024-27922CRITICALHTTP Handling Vulnerability in the Bare serverEPSS 0.8%CVE-2024-6827HIGHHTTP Request Smuggling in benoitc/gunicornEPSS 0.8%CVE-2022-31109HIGHHTTP Host Header Attack Vulnerability in laminas-diactorosEPSS 0.8%