Detections
Analytics
ESXI-65-000019 - The ESXi host SSH daemon must not permit Kerberos authentication.
Information
Kerberos authentication for SSH is often implemented using GSSAPI. If Kerberos is enabled through SSH, the SSH daemon provides a means of access to the system's Kerberos implementation. Vulnerabilities in the system's Kerberos implementation may then be subject to exploitation. To reduce the attack surface of the system, the Kerberos authentication mechanism within SSH must be disabled for systems.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':KerberosAuthentication no
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_6-5_Y21M07_STIG.zip
Item Details
Audit Name: DISA STIG VMware vSphere ESXi OS 6.5 v2r2
Category: IDENTIFICATION AND AUTHENTICATION
References: 800-53|IA-5, CAT|III, CCI|CCI-000366, Rule-ID|SV-207620r388482_rule, STIG-ID|ESXI-65-000019, STIG-Legacy|SV-104071, STIG-Legacy|V-93985, Vuln-ID|V-207620
Plugin: Unix
Control ID: b3b75a802ab081a67f6c84f4bade970b0e8050d00f54dcf5546f0e8d2b329863