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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-26754r1_rule | DCNR-1 | 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 |
|---|---|
| Solaris 10 SPARC Security Technical Implementation Guide | 2020-02-26 |
Details
| Check Text ( C-27763r1_chk ) |
|---|
| Check the SSH client configuration for allowed ciphers. # grep -i ciphers /etc/ssh/ssh_config | grep -v '^#' If no lines are returned, the returned ciphers list contains any cipher not starting with 3des or aes, this is a finding. |
| Fix Text (F-24004r1_fix) |
|---|
| Edit /etc/ssh/ssh_config and add or edit the "Ciphers" line. Only include ciphers that start with "3des" or "aes" and do not contain "cbc". For the list of available ciphers for the particular version of your software, consult the ssh_config manpage. |