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


Overview

Finding ID Version Rule ID IA Controls Severity
V-22461 GEN005510 SV-46015r1_rule Medium
Description
DoD information systems are required to use FIPS 140-2 approved ciphers. SSHv2 ciphers meeting this requirement are 3DES and AES.
STIG Date
SUSE Linux Enterprise Server v11 for System z 2016-12-20

Details

Check Text ( C-43293r1_chk )
Check the SSH client configuration for allowed ciphers.
# grep -i ciphers /etc/ssh/ssh_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 (F-39378r1_fix)
Edit the SSH client configuration and remove any ciphers not starting with "3des" or "aes". If necessary, add a "Ciphers" line.