Users may see following Plugin name or Vulnerabilities on their security assessment report . Below is example one, but the plugin name will be same for all customer
Plugin Name
SSL RC4 Cipher Suites Supported (Bar Mitzvah)
Plugin Output: List of RC4 cipher suites supported by the remote server : Low Strength Ciphers (<= 64-bit key) EXP-RC4-MD5 Kx=RSA(512) Au=RSA Enc=RC4(40) Mac=MD5 export High Strength Ciphers (>= 112-bit key) RC4-MD5 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5 RC4-SHA Kx=RSA Au=RSA Enc=RC4(128) Mac=SHA1 The fields above are : {OpenSSL ciphername} Kx={key exchange} Au={authentication} Enc={symmetric encryption method} Mac={message authentication code} {export flag}
SSL Weak Cipher Suites Supported
Plugin Output: Here is the list of weak SSL ciphers supported by the remote server : Low Strength Ciphers (<= 64-bit key) EXP-DES-CBC-SHA Kx=RSA(512) Au=RSA Enc=DES-CBC(40) Mac=SHA1 export EXP-RC2-CBC-MD5 Kx=RSA(512) Au=RSA Enc=RC2-CBC(40) Mac=MD5 export EXP-RC4-MD5 Kx=RSA(512) Au=RSA Enc=RC4(40) Mac=MD5 export DES-CBC-SHA Kx=RSA Au=RSA Enc=DES-CBC(56) Mac=SHA1 The fields above are : {OpenSSL ciphername} Kx={key exchange} Au={authentication} Enc={symmetric encryption method} Mac={message authentication code} {export flag}
SSL Medium Strength Cipher Suites Supported (SWEET32)
Plugin Output: Medium Strength Ciphers (> 64-bit and < 112-bit key or 3DES) DES-CBC3-SHA Kx=RSA Au=RSA Enc=3DES-CBC(168) Mac=SHA1 The fields above are : {OpenSSL ciphername} Kx={key exchange} Au={authentication} Enc={symmetric encryption method} Mac={message authentication code} {export flag}
Users needs to create an SSL server-policy and choose the secured cipher suit. Then link this newly created SSL server-policy to the ip https service.
However from my point of view, customer don’t need the http and https service as to configure and manage the switch as we use SSH.
Users can just disable the ip http and https service to mitigate this vulnerability.
Config Example for SSL:
==
ssl version ssl3.0 disable
ssl version tls1.0 disable
ssl server-policy myserverpolicy ciphersuite dhe_rsa_aes_128_cbc_sha dhe_rsa_aes_256_cbc_sha exp_rsa_des_cbc_sha rsa_3des_ede_cbc_sha rsa_aes_128_cbc_sha rsa_aes_256_cbc_sha rsa_des_cbc_sha
ssl client-policy myclientpolicy prefer-cipher dhe_rsa_aes_128_cbc_sha dhe_rsa_aes_256_cbc_sha exp_rsa_des_cbc_sha rsa_3des_ede_cbc_sha rsa_aes_128_cbc_sha rsa_aes_256_cbc_sha rsa_des_cbc_sha
==
[5940-133-32-ssl-server-policy- myserverpolicy]ciphersuite ?
dhe_rsa_aes_128_cbc_sha Use the ciphersuit
SSL_DHE_RSA_with_AES_128_CBC_SHA
dhe_rsa_aes_128_cbc_sha256 Use the ciphersuit
TLS_DHE_RSA_with_AES_128_CBC_SHA256
dhe_rsa_aes_256_cbc_sha Use the ciphersuit
SSL_DHE_RSA_with_AES_256_CBC_SHA
dhe_rsa_aes_256_cbc_sha256 Use the ciphersuit
TLS_DHE_RSA_with_AES_256_CBC_SHA256
ecdhe_ecdsa_aes_128_cbc_sha256 Use the ciphersuit
TLS_ECDHE_ECDSA_with_AES_128_CBC_SHA256
ecdhe_ecdsa_aes_128_gcm_sha256 Use the ciphersuit
TLS_ECDHE_ECDSA_with_AES_128_GCM_SHA256
ecdhe_ecdsa_aes_256_cbc_sha384 Use the ciphersuit
TLS_ECDHE_ECDSA_with_AES_256_CBC_SHA384
ecdhe_ecdsa_aes_256_gcm_sha384 Use the ciphersuit
TLS_ECDHE_ECDSA_with_AES_256_GCM_SHA384
ecdhe_rsa_aes_128_cbc_sha256 Use the ciphersuit
TLS_ECDHE_RSA_with_AES_128_CBC_SHA256
ecdhe_rsa_aes_128_gcm_sha256 Use the ciphersuit
TLS_ECDHE_RSA_with_AES_128_GCM_SHA256
ecdhe_rsa_aes_256_cbc_sha384 Use the ciphersuit
TLS_ECDHE_RSA_with_AES_256_CBC_SHA384
ecdhe_rsa_aes_256_gcm_sha384 Use the ciphersuit
TLS_ECDHE_RSA_with_AES_256_GCM_SHA384
exp_rsa_des_cbc_sha Use the ciphersuit
SSL_RSA_export_with_DES_CBC_SHA
exp_rsa_rc2_md5 Use the ciphersuit
SSL_RSA_export_with_RC2_CBC_40_MD5
exp_rsa_rc4_md5 Use the ciphersuit
SSL_RSA_export_with_RC4_40_MD5
rsa_3des_ede_cbc_sha Use the ciphersuit
SSL_RSA_with_3DES_EDE_CBC_SHA
rsa_aes_128_cbc_sha Use the ciphersuit
SSL_RSA_with_AES_128_CBC_SHA
rsa_aes_128_cbc_sha256 Use the ciphersuit
TLS_RSA_with_AES_128_CBC_SHA256
rsa_aes_256_cbc_sha Use the ciphersuit
SSL_RSA_with_AES_256_CBC_SHA
rsa_aes_256_cbc_sha256 Use the ciphersuit
TLS_RSA_with_AES_256_CBC_SHA256
rsa_des_cbc_sha Use the ciphersuit SSL_RSA_with_DES_CBC_SHA
rsa_rc4_128_md5 Use the ciphersuit SSL_RSA_with_RC4_128_MD5
rsa_rc4_128_sha Use the ciphersuit SSL_RSA_with_RC4_128_SHA
#SSLWeakCipherSuites#SSLRC4CipherSuites#SSLVulnerabilities