Check: VMCH-70-000027
VMware vSphere 7.0 Virtual Machine STIG:
VMCH-70-000027
(in versions v1 r3 through v1 r1)
Title
Log retention must be configured properly on the virtual machine (VM). (Cat II impact)
Discussion
The ESXi hypervisor maintains logs for each individual VM by default. These logs contain information including but not limited to power events, system failure information, tools status and activity, time sync, virtual hardware changes, vMotion migrations, and machine clones. By default, 10 of these logs are retained. This is normally sufficient for most environments, but this configuration must be verified and maintained.
Check Content
From the vSphere Client, select the Virtual Machine, right-click, and go to Edit Settings >> VM Options tab >> Advanced >> Configuration Parameters >> Edit Configuration. Find the "log.keepOld" value and verify it is set to "10". or From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the following command: Get-VM "VM Name" | Get-AdvancedSetting -Name log.keepOld If the virtual machine advanced setting "log.keepOld" is not set to "10", this is a finding. If the virtual machine advanced setting "log.keepOld" does not exist, this is not a finding.
Fix Text
From the vSphere Client, select the Virtual Machine, right-click and go to Edit Settings >> VM Options tab >> Advanced >> Configuration Parameters >> Edit Configuration. Find the "log.keepOld" value and set it to "10". Note: The VM must be powered off to modify the advanced settings through the vSphere Client. It is recommended to configure these settings with PowerCLI as this can be done while the VM is powered on. In this case, the modified settings will not take effect until a cold boot of the VM. or From a PowerCLI command prompt while connected to the ESXi host or vCenter server, run the provided commands as shown below. If the setting does not exist, run: Get-VM "VM Name" | New-AdvancedSetting -Name log.keepOld -Value 10 If the setting exists, run: Get-VM "VM Name" | Get-AdvancedSetting -Name log.keepOld | Set-AdvancedSetting -Value 10
Additional Identifiers
Rule ID: SV-256475r886468_rule
Vulnerability ID: V-256475
Group Title: SRG-OS-000480-VMM-002000
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |