Title

The SSH daemon must be configured to only use FIPS 140-2 approved ciphers. (Cat II impact)

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 the SSH daemon configuration and remove any ciphers not starting with "3des" or "aes". If necessary, add a "Ciphers" line. Restart the SSH daemon. # /sbin/service sshd restart

Additional Identifiers

Rule ID: SV-46004r2_rule

Vulnerability ID: V-22458

Group Title: GEN005505

Expert Comments

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