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Vulnerable Machines related to OMIGOD CVE-2021-38647

Description

'This query uses the Azure Defender Security Nested Recommendations data to find machines vulnerable to OMIGOD CVE-2021-38647. OMI is the Linux equivalent of Windows WMI and helps users manage configurations across remote and local environments. The query aims to find machines that have this OMI vulnerability (CVE-2021-38647). Security Nested Recommendations data is sent to Microsoft Sentinel using the continuous export feature of Azure Defender(refrence link below). Reference: https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure Reference: https://docs.microsoft.com/azure/security-center/continuous-export?tabs=azure-portal'
Rule type
Scheduled
Version
1.0.5
Query frequency
1d
Query period
1d
Trigger
gt 0

Declared MITRE coverage

KQL query

Original query, unchanged.

SecurityNestedRecommendation
| where RemediationDescription has 'CVE-2021-38647'
| parse ResourceDetails with * 'virtualMachines/' VirtualMAchine '"' *
| summarize arg_min(TimeGenerated, *) by TenantId, RecommendationSubscriptionId, VirtualMAchine, RecommendationName,Description,RemediationDescription, tostring(AdditionalData),VulnerabilityId
| extend HostName = tostring(split(VirtualMAchine, ".")[0]), DomainIndex = toint(indexof(VirtualMAchine, '.'))
| extend HostNameDomain = iff(DomainIndex != -1, substring(VirtualMAchine, DomainIndex + 1), VirtualMAchine)

Declared entities

Host

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
4d94d4a9-dc96-450a-9dea-4d4d4594199b
Additional source files 1Detections/SecurityNestedRecommendation/OMIGODVulnerableMachines.yamlsource ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.