Detections
Analytics
PHTN-40-000215 - The Photon operating system must configure Secure Shell (SSH) to disallow compression of the encrypted session stream.
Information
If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could result in compromise of the system from an unauthenticated connection.Solution
Navigate to and open:/etc/ssh/sshd_config
Ensure the "Compression" line is uncommented and set to the following:
Compression no
At the command line, run the following command:
# systemctl restart sshd.service
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y26M07_STIG.zip
Item Details
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258878r991589_rule, STIG-ID|PHTN-40-000215, Vuln-ID|V-258878
Plugin: Unix
Control ID: 27f931bad106bfaf4a8a9ae2ffc24306e6dfe943d554f07fd729e51d38a97f9a