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nmap: Listar cifrados soportados de servidores SSL
Mediante NSE podemos extender la funcionalidad de nmap, como por ejemplo el script de demo para comprobar la vulnerabilidad del Range header de Apache. Pero también puede usarse para obtener otros datos relevantes como pueden ser el listado de cifrados soportados
Mediante ssl-enum-ciphers e indicando un servicio SSL podremos obtener el listado:
# nmap --script ssl-enum-ciphers -p 443 systemadmin.es Starting Nmap 6.40 ( http://nmap.org ) at 2015-05-22 11:28 CEST Nmap scan report for systemadmin.es (1.2.3.4) Host is up (0.035s latency). rDNS record for 1.2.3.4: systemadmin.es PORT STATE SERVICE 443/tcp open https | ssl-enum-ciphers: | SSLv3: No supported ciphers found | TLSv1.0: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | compressors: | NULL | TLSv1.1: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | compressors: | NULL | TLSv1.2: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 - strong | TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 - strong | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA256 - strong | TLS_RSA_WITH_AES_128_GCM_SHA256 - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA256 - strong | TLS_RSA_WITH_AES_256_GCM_SHA384 - strong | compressors: | NULL |_ least strength: strong Nmap done: 1 IP address (1 host up) scanned in 2.31 seconds
Para hacer una valoración nos indica también el cifrado menos fuerte si es débil o fuerte mediante least strength:
# nmap --script ssl-enum-ciphers -p 443 weak.systemadmin.es Starting Nmap 6.40 ( http://nmap.org ) at 2015-05-22 11:29 CEST Nmap scan report for weak.systemadmin.es (1.1.1.1) Host is up (0.031s latency). PORT STATE SERVICE 443/tcp open https | ssl-enum-ciphers: | SSLv3: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_SEED_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_RSA_WITH_IDEA_CBC_SHA - weak | TLS_RSA_WITH_RC4_128_MD5 - strong | TLS_RSA_WITH_RC4_128_SHA - strong | TLS_RSA_WITH_SEED_CBC_SHA - strong | compressors: | NULL | TLSv1.0: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_SEED_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_RSA_WITH_IDEA_CBC_SHA - weak | TLS_RSA_WITH_RC4_128_MD5 - strong | TLS_RSA_WITH_RC4_128_SHA - strong | TLS_RSA_WITH_SEED_CBC_SHA - strong | compressors: | NULL | TLSv1.1: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_SEED_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_RSA_WITH_IDEA_CBC_SHA - weak | TLS_RSA_WITH_RC4_128_MD5 - strong | TLS_RSA_WITH_RC4_128_SHA - strong | TLS_RSA_WITH_SEED_CBC_SHA - strong | compressors: | NULL | TLSv1.2: | ciphers: | TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 - strong | TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 - strong | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 - strong | TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_DHE_RSA_WITH_SEED_CBC_SHA - strong | TLS_RSA_WITH_3DES_EDE_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA - strong | TLS_RSA_WITH_AES_128_CBC_SHA256 - strong | TLS_RSA_WITH_AES_128_GCM_SHA256 - strong | TLS_RSA_WITH_AES_256_CBC_SHA - strong | TLS_RSA_WITH_AES_256_CBC_SHA256 - strong | TLS_RSA_WITH_AES_256_GCM_SHA384 - strong | TLS_RSA_WITH_CAMELLIA_128_CBC_SHA - strong | TLS_RSA_WITH_CAMELLIA_256_CBC_SHA - strong | TLS_RSA_WITH_IDEA_CBC_SHA - weak | TLS_RSA_WITH_RC4_128_MD5 - strong | TLS_RSA_WITH_RC4_128_SHA - strong | TLS_RSA_WITH_SEED_CBC_SHA - strong | compressors: | NULL |_ least strength: weak Nmap done: 1 IP address (1 host up) scanned in 2.74 seconds
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