Detections
Analytics

ESXI-80-000234 - The ESXi host must enable strict x509 verification for SSL syslog endpoints.

Information

When sending syslog data to a remote host via SSL, the ESXi host is presented with the endpoint's SSL server certificate. In addition to trust verification, configured elsewhere, this "x509-strict" option performs additional validity checks on CA root certificates during verification.

These checks are generally not performed (CA roots are inherently trusted) and might cause incompatibilities with existing, misconfigured CA roots. The NIAP requirements in the Virtualization Protection Profile and Server Virtualization Extended Package, however, require even CA roots to pass validations.

Solution

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> System >> Advanced System Settings.

Click "Edit". Select the "Syslog.global.certificate.strictX509Compliance" value and configure it to "true".

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VMHost | Get-AdvancedSetting -Name Syslog.global.certificate.strictX509Compliance | Set-AdvancedSetting -Value "true"

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_VMW_vSphere_8-0_Y25M04_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-258789r959010_rule, STIG-ID|ESXI-80-000234, Vuln-ID|V-258789

Plugin: VMware

Control ID: b5358da6279d600657432f8881648de494a3462427f89909c6192840dbe9b55b