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ID de Prueba: | 1.3.6.1.4.1.25623.1.0.105880 |
Categoría: | SSL and TLS |
Título: | SSL/TLS: Certificate Signed Using A Weak Signature Algorithm |
Resumen: | The remote service is using a SSL/TLS certificate in the certificate chain that has been signed using a; cryptographically weak hashing algorithm. |
Descripción: | Summary: The remote service is using a SSL/TLS certificate in the certificate chain that has been signed using a cryptographically weak hashing algorithm. Vulnerability Insight: The following hashing algorithms used for signing SSL/TLS certificates are considered cryptographically weak and not secure enough for ongoing use: - Secure Hash Algorithm 1 (SHA-1) - Message Digest 5 (MD5) - Message Digest 4 (MD4) - Message Digest 2 (MD2) Beginning as late as January 2017 and as early as June 2016, browser developers such as Microsoft and Google will begin warning users when visiting web sites that use SHA-1 signed Secure Socket Layer (SSL) certificates. NOTE: The script preference allows to set one or more custom SHA-1 fingerprints of CA certificates which are trusted by this routine. The fingerprints needs to be passed comma-separated and case-insensitive: Fingerprint1 or fingerprint1,Fingerprint2 Solution: Servers that use SSL/TLS certificates signed with a weak SHA-1, MD5, MD4 or MD2 hashing algorithm will need to obtain new SHA-2 signed SSL/TLS certificates to avoid web browser SSL/TLS certificate warnings. CVSS Score: 4.0 CVSS Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N |
Copyright | Copyright (C) 2016 Greenbone Networks GmbH |
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