The SSH daemon must be configured to only use FIPS 140-2 approved ciphers.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: DCNR-1

Associated with: CCI-000068

SV-41035r1_rule The SSH daemon must be configured to only use FIPS 140-2 approved ciphers.

Vulnerability discussion

DoD information systems are required to use FIPS 140-2 approved ciphers. SSHv2 ciphers meeting this requirement are 3DES and AES.

Check content

Check the SSH daemon configuration for allowed ciphers. # grep -i ciphers /etc/ssh/sshd_config | grep -v '^#' If no lines are returned, or the returned ciphers list contains any cipher not starting with 3des or aes, this is a finding.

Fix text

Edit /etc/ssh/sshd_config and change or set the Ciphers line to the following. Ciphers aes128-ctr, aes192-ctr, aes256-ctr

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