SSH vulnerabilities MAC algorithms and CBC ciphers - Resolved | Tech Arkit

How to Disable weak ciphers in SSH protocol access

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Name: SSH Weak MAC Algorithms Enabled
Description: The remote SSH server is configured to allow either MD5 or 96-bit MAC Algorithms both of which are considered weak.
Solution: Contact the vendor or consult product documentation to disable MD5 and 96-bit MAC algorithms

Name: SSH Server CBC Mode Ciphers Enabled
Description: The SSH server is configured to support Cipher Block Chaining (CBC) encryption. This may allow an attacker to recover the plaintext message from the ciphertext
Solution: Contact the vendor or consult product documentation to disable CBC mode cipher encryption and enable CTR or GCM cipher mode encryption.

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[pravallikam]

How to disable weak ciphers in windows 2019? Please help me

[pablitho]

How can I add new ciphers? I'm trying to fix a vulnerability on AIX and I try this fix that you show in this video, with the same procedure, and I have the following error:

/etc/ssh/ssh_config line 40: Bad SSH2 cipher spec 'diffie-hellman-group16-sha512, diffie-hellman-group18-sha512, diffie-hellman-group14-sha256, rsa-sha2-512, rsa-sha2-256, ssh-ed25519'.

I think that I need to add new ssh ciphers to openssl but I cannot find a procedure, if exists.

Thanks and sorry for my english: I'm from Argentina.

[jayshree]

whether there is any service impact after disabling weak cipher/max/KEX

[anupriya]

Is there a link to find ssh cipher lists in security order ?

[jobingamers]

Bro. How to know weak and strong ciphers?

[boobalandharani]

SSH Weak MAC Algorithms Enabled and SSH Server CBC Mode Ciphers Enabled vulnerability how do we fixes in firewall?

[amitAhiras]

How to do this on Windows machine, if I add them in sshd_config, the service is not starting