Fedora 27: Weak SSH Algorithms Supported
27 April 2016
Recently my workstation was scanned for vulnerabilities and the Nessus scanning software reported a medium vulnerability of "SSH Weak Algorithms Supported". The Vulnerability report had few details. Luckily I was able to find the folowing resources.
Add the following snippet to the end of your ssh_config file to disable the weak algorithms.
... Protocol 2 Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128 MACs hmac-sha1,firstname.lastname@example.org,hmac-ripemd160 ...