Fallos del tipo CWE-295

1017 resultados

Validação inadequada de certificados SSL/TLS

A aplicação não valida corretamente o certificado SSL/TLS do servidor remoto, aceitando certificados inválidos, expirados ou de domínios diferentes. Isso permite ataques man-in-the-middle onde um atacante intercepta a comunicação mesmo com criptografia, comprometendo a confidencialidade e integridade dos dados.

Ejemplo

Uma API cliente ignora erros de validação de certificado (ex: desabilita verificação de hostname ou ignora exceções de certificado inválido) e faz requisições HTTPS para servidores externos. Um atacante na rede intercepta o tráfego, apresenta seu próprio certificado, e consegue ler dados sensíveis como tokens de autenticação ou credenciais.

Cómo mitigar

Sempre validar certificados: verificar hostname, data de validade e cadeia de confiança. Usar bibliotecas padrão do seu runtime (HttpClient do .NET, requests do Python, etc.) com validação ativada por padrão. Nunca desabilitar validação SSL/TLS em produção; se precisar em desenvolvimento, use variáveis de ambiente e revise criticamente o código antes de deploy.

CVE-2017-7468MEDIUMIn curl and libcurl 7.52.0 to and including 7.53.1, libcurl would attempt to resume a TLS session even if the client certificate had changedEPSS 1.7%CVE-2016-7075HIGHIt was found that Kubernetes as used by Openshift Enterprise 3 did not correctly validate X.509 client intermediate certificate host name fiEPSS 1.6%CVE-2023-31484HIGHCPAN.pm before 2.35 does not verify TLS certificates when downloading distributions over HTTPS.EPSS 1.5%CVE-2025-32989MEDIUMGnutls: vulnerability in gnutls sct extension parsingEPSS 1.5%CVE-2023-20963HIGHIn WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional execution privilegesEPSS 1.5%KEVCVE-2024-5921MEDIUMGlobalProtect App: Insufficient Certificate Validation Leads to Privilege EscalationEPSS 1.5%CVE-2026-18129HIGHCleartext transmission of sensitive information in the Core of Ivanti Endpoint Manager before version 2024 SU7 allows a remote unauthenticatEPSS 1.5%CVE-2020-10925HIGHThis vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEPSS 1.4%CVE-2017-2648MEDIUMIt was found that jenkins-ssh-slaves-plugin before version 1.15 did not perform host key verification, thereby enabling Man-in-the-Middle atEPSS 1.4%CVE-2023-28093HIGHA user with a compromised configuration can start an unsigned binary as a service.EPSS 1.4%CVE-2021-37698HIGHMissing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2WriterEPSS 1.4%CVE-2019-1010275—helm Before 2.7.2 is affected by: CWE-295: Improper Certificate Validation. The impact is: Unauthorized clients could connect to the server EPSS 1.4%CVE-2021-29504CRITICALImproper Certificate Validation in WP-CLI frameworkEPSS 1.3%CVE-2017-3194—Pandora iOS app prior to version 8.3.2 fails to properly validate SSL certificates provided by HTTPS connections, which may enable an attackEPSS 1.3%CVE-2016-9952HIGHThe verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS baEPSS 1.3%CVE-2022-42813CRITICALA certificate validation issue existed in the handling of WKWebView. This issue was addressed with improved validation. This issue is fixed EPSS 1.2%CVE-2022-26305—Execution of Untrusted Macros Due to Improper Certificate ValidationEPSS 1.2%CVE-2017-2629MEDIUMcurl before 7.53.0 has an incorrect TLS Certificate Status Request extension feature that asks for a fresh proof of the server's certificateEPSS 1.2%CVE-2020-10059MEDIUMUpdateHub Module Explicitly Disables TLS VerificationEPSS 1.2%CVE-2022-47758CRITICALNanoleaf firmware v7.1.1 and below is missing TLS verification, allowing attackers to execute arbitrary code via a DNS hijacking attack.EPSS 1.2%