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In the following document, you will find more details about VMware vSphere 8.0 Security Configuration Best Practices.
You Should Know:
1. Secure ESXi Hosts
- Disable SSH/Shell Access (Enable only when needed):
esxcli system ssh set --enabled=false
- Enable Lockdown Mode to restrict direct root access:
vim-cmd hostsvc/admin/lockdown_mode_enable
2. Harden vCenter Server
- Enable TLS 1.2+ Only:
</li> </ul> <h1>Edit /etc/vmware-rhttpproxy/config.xml</h1> <sslProtocols>tls1.2</sslProtocols>
– Disable Legacy Authentication (SHA-1):
<h1>In vCenter, navigate to Administration > Certificate Management > Advanced Settings</h1>
3. Network Security
- Configure vSphere Distributed Switch (VDS) with Port Security:
esxcli network vswitch standard policy security set --vswitch=vSwitch0 --allow-promiscuous=false --allow-mac-change=false --allow-forged-transmit=false
4. Role-Based Access Control (RBAC)
- Apply Least Privilege Principle:
</li> </ul> <h1>Example: Create a custom role with minimal permissions</h1> New-VIRole -Name "ReadOnly-Audit" -Privilege (Get-VIPrivilege -Role ReadOnly)
5. Logging & Monitoring
- Enable vCenter Syslog Forwarding:
</li> </ul> <h1>Set syslog server in vCenter:</h1> Set-VMHostSysLogServer -VMHost (Get-VMHost) -SysLogServer "udp://<your-syslog-server>:514"
6. Patch Management
- Automate ESXi Updates via CLI:
esxcli software profile update -p ESXi-8.0.0-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml
What Undercode Say:
VMware vSphere 8.0 introduces robust security enhancements, but misconfigurations can expose vulnerabilities. Always:
– Disable unused services (e.g., SSH, SNMP).
– Enforce TLS 1.2+ and disable weak ciphers.
– Audit logs regularly for anomalies.
– Use vSphere Trust Authority for secure boot and attestation.
– Automate compliance checks with PowerCLI:Get-VMHost | Test-VMHostSecurityConfiguration -Profile (Get-VMHostSecurityProfile -Name "STIG")
Expected Output:
A hardened vSphere 8.0 environment with:
- Reduced attack surface via service disabling.
- Encrypted communication (TLS 1.2+).
- Strict access controls (RBAC).
- Centralized logging for forensic readiness.
References:
Reported By: Shamseer Siddiqui – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅Join Our Cyber World:
- Automate ESXi Updates via CLI:
- Enable vCenter Syslog Forwarding:
- Configure vSphere Distributed Switch (VDS) with Port Security:
