Security Sidebar: Improving Your SSL Labs Test Grade
Encrypt everything. That's what Google Chairman Eric Schmidt recently said. His comments were in response to various surveillance efforts that he considered government overreach and censorship. Hi...
Published Dec 23, 2014
Version 1.0ltwagnon
Ret. Employee
Joined May 15, 2019
ltwagnon
Ret. Employee
Joined May 15, 2019
GeneUWG_150657
Mar 08, 2016Nimbostratus
I am using the DEFAULT cipher suite on v12.0.0 HF1 yet get the following from SSL Labs, any suggestions?
This server supports weak Diffie-Hellman (DH) key exchange parameters. Grade capped to B.
These two notes were highlighted in the protocol details section:
Forward SecrecyWeak key exchange WEAK
DH public server param (Ys) reuse Yes
And these were highlighted in the Cipher Suite section:
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f) DH 1024 bits FS WEAK256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e) DH 1024 bits FS WEAK128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b) DH 1024 bits FS WEAK256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39) DH 1024 bits FS WEAK256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67) DH 1024 bits FS WEAK128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33) DH 1024 bits FS WEAK128
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (0x16) DH 1024 bits FS WEAK112