CVE-2002-0862

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.

Las APIs (Application Programming Interface) CertGetCertificateChain CertVerifyCertificateChainPolicy WinVerifyTrust en la CriptoAPI de productos de Microsoft, incluyendo Microsoft Windows 98 a XP, Office para Mac, Internet Explorer para Mac, y Outlook Express para Mac, no verifican adecuadamente las restricciones básicas de certificados X.509 firmados por CAs (Autoridad Certificadora) intermedias, lo que permite a atacantes remotos falsear los certificados de sitios de confianza mediante un ataque tipo hombre-en-el-medio en sesiones SSL, como se informó anteriormente para Internet Explorer e IIS.