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The SSH daemon must be configured to only use FIPS 140-2 approved ciphers.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-227893 | GEN005505 | SV-227893r505926_rule | Medium |
| Description |
|---|
| DoD information systems are required to use FIPS 140-2 approved ciphers. SSHv2 ciphers meeting this requirement are 3DES and AES. Satisfies: SRG-OS-000033, SRG-OS-000505, SRG-OS-000555 |
| STIG | Date |
|---|---|
| Solaris 10 X86 Security Technical Implementation Guide | 2020-09-04 |
Details
| Check Text ( C-30055r490084_chk ) |
|---|
| 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 (F-30043r490085_fix) |
|---|
| Edit /etc/ssh/sshd_config and change or set the Ciphers line to the following. Ciphers aes128-ctr, aes192-ctr, aes256-ctr |