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SSH Weak Key Exchange Algorithms Enabled

BenBautista8672
Visitor

I read other discussion on this topic however my case might be different because of the type of hardware used. I recently upgraded the IOS on 3560CX switch to 15.2(7)E10 as recommended by the cybersecurity team. The solution I read on this topic is to update the key exchange algorithm, however it only gives two algorithm which are included on the list of Nessus being flag. Redacted show command result below. Is there a other way to disable the key exchange?


SSH Enabled - version 2.0


Encryption Algorithms:aes256-ctr,aes192-ctr,aes128-ctr
MAC Algorithms:hmac-sha2-512,hmac-sha2-256
KEX Algorithms:diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
Authentication timeout: 60 secs; Authentication retries: 5
Minimum expected Diffie Hellman key size : 2048 bits

 

1 Accepted Solution

Accepted Solutions

This device is too old for up-to-date algorithms.

https://community.cisco.com/t5/security-knowledge-base/guide-to-better-ssh-security/ta-p/3133344

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View solution in original post

2 Replies 2

This device is too old for up-to-date algorithms.

https://community.cisco.com/t5/security-knowledge-base/guide-to-better-ssh-security/ta-p/3133344

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If you found this post helpful, please give it Kudos. If my answer solves your problem, please click Accept as Solution so others can benefit from it.

moved to Switching as you posted in Email Security