Weaknesses of type CWE-1300

35 results

Vazamento de informações por canal secundário

É quando o sistema vaza dados sensíveis não pelos dados em si, mas por sinais indiretos como tempo de execução, consumo de energia, ruído eletromagnético ou padrões de acesso à memória. Um atacante observa essas características físicas ou comportamentais para inferir segredos (senhas, chaves criptográficas) sem quebrar a criptografia.

Example

Uma função que valida senha comparando byte a byte pode variar o tempo de resposta conforme quantos caracteres estão corretos: atacante tira vantagem dessa diferença de milissegundos para adivinhar a senha. Outro caso: um servidor que processa requisições usa mais energia/CPU ao processar uma chave correta versus incorreta, e alguém monitora via osciloscópio.

How to mitigate

Use operações de tempo constante (constant-time) para comparações sensíveis; implemente mascaramento e aleatorização nos cálculos criptográficos; evite padrões previsíveis de acesso à memória; quando possível, ofusque o timing e o consumo de recursos. Testes de timing e análise de potência durante code review ajudam a identificar.

CVE-2023-6258HIGHPkcs11-provider: side-channel proofing pkcs#1 1.5 pathsEPSS 0.6%CVE-2026-13922MEDIUMSide-channel information leakage in Paint in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a EPSS 0.3%CVE-2026-13790MEDIUMSide-channel information leakage in Scroll in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via aEPSS 0.3%CVE-2026-13935MEDIUMSide-channel information leakage in ComputePressure in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin dEPSS 0.3%CVE-2026-17800MEDIUMInappropriate implementation in MediaRecording in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensiEPSS 0.3%CVE-2026-17796MEDIUMSide-channel information leakage in WebXR in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive EPSS 0.3%CVE-2025-10890CRITICALSide-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crEPSS 0.3%CVE-2026-14074MEDIUMSide-channel information leakage in WebAuthentication in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to leak crossEPSS 0.3%CVE-2026-17696MEDIUMSide-channel information leakage in Media in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a EPSS 0.3%CVE-2026-13809MEDIUMSide-channel information leakage in Safe Browsing in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker who had compromisEPSS 0.3%CVE-2026-11153CRITICALSide-channel information leakage in Forms in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a EPSS 0.3%CVE-2026-17859MEDIUMInappropriate implementation in Favicons in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a cEPSS 0.3%CVE-2026-17851MEDIUMSide-channel information leakage in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the rendeEPSS 0.3%CVE-2026-14085MEDIUMSide-channel information leakage in CSS in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crEPSS 0.3%CVE-2025-11207MEDIUMSide-channel information leakage in Storage in Google Chrome prior to 141.0.7390.54 allowed a remote attacker to perform arbitrary read/writEPSS 0.2%CVE-2026-5876MEDIUMSide-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data vEPSS 0.2%CVE-2026-17730MEDIUMSide-channel information leakage in Autofill in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who convinced a user to engagEPSS 0.2%CVE-2026-17760MEDIUMSide-channel information leakage in NoStatePrefetch in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin dEPSS 0.2%CVE-2026-14071MEDIUMSide-channel information leakage in WebAudio in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data viaEPSS 0.2%CVE-2026-11284MEDIUMSide-channel information leakage in PerformanceAPIs in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin dEPSS 0.2%