Detections
Analytics
PHTN-40-000214 - The Photon operating system must configure Secure Shell (SSH) to disallow Kerberos authentication.
Information
If Kerberos is enabled through SSH, sshd 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.Solution
Navigate to and open:/etc/ssh/sshd_config
Ensure the "KerberosAuthentication" line is uncommented and set to the following:
KerberosAuthentication 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_Y26M10_STIG.zip
Item Details
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258877r991589_rule, STIG-ID|PHTN-40-000214, Vuln-ID|V-258877
Plugin: Unix
Control ID: 7779f20c58ce756b04ce7e8eafb23e6549f7f447e2638c1647cb789f4ebafa91