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

From SOLARIS 10 X86 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

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.