Detections
Analytics
ESXI-65-000021 - The ESXi host SSH daemon must not allow compression or must only allow compression after successful authentication.
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, potentially with root privileges.Solution
From an SSH session connected to the ESXi host, or from the ESXi shell, add or correct the following line in '/etc/ssh/sshd_config':Compression no
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-5_Y20M04_STIG.zip
Item Details
Audit Name: DISA STIG VMware vSphere ESXi OS 6.5 v1r4
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6, CAT|II, CCI|CCI-000366, CSCv6|3.1, Rule-ID|SV-104075r1_rule, STIG-ID|ESXI-65-000021, Vuln-ID|V-93989
Plugin: Unix
Control ID: 99269d4a722b7617d8d98bbe4943b00db9be83d34925e614eb5d0f5c402c66e0