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Components
C
Key Exchange Method
Name
static Diffie–Hellman Ephemeral (DH)
Security
Static Diffie-Hellman[35][36] is a variant of Diffie-Hellman[269][270][271][272][273] key exchange[467] protocol that has no forward secrecy[135][136][137][138], and does not protect past sessions against future compromises. If long-term secret keys or passwords are compromised, encrypted communications and sessions recorded in the past can be retrieved and decrypted.
Recommendations
Remove the cipher suite from the list of cipher suites supported by your server or replace the cipher suite with it's Ephemeral Diffie-Hellman[142][143][144][145] version.
Encryption algorithm Advanced Encryption Standard[169][170][171][172][173][174][175][176] is a block cipher[524][525][526][527] for which there is no known practical attack that would allow the attacker to recover the encrypted text without knowledge of the key when the algorithm is implemented correctly. However improper implementations may lead to a side-channel attack[106][107][108] as it has happened in case of OpenSSL[519][520][161][162][163].
Recommendations
Prefer cipher suites with greater key size of AES (eg: perfer AES-256 over AES-128).
Remove the cipher suite from the list of cipher suites supported by your server or at least set the cipher suite order explicitly and any cipher suite modes be preferred over ciphers suites with CBC modes.
A+
Encryption Key Size
Name
256
Security
The symmetric key[193][194][195] withkey size[438] more than 128 bits as it is should be according to National Institute of Standards and Technology[428][429] so it is not vulnerable to preimage attack[215] and it cannreliably prove that message came from the stated sender (its authenticity) and has not been changed, so connection is not open for a man-in-the-middle attack[414].
Recommendations
Remove the cipher suite from the list of cipher suites supported by your server.
