CVE-2021-38647

Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

Open Management Infrastructure Remote Code Execution Vulnerability

Una Vulnerabilidad de Ejecución de Código Remota de Open Management Infrastructure

By removing the authentication header, an attacker can issue an HTTP request to the OMI management endpoint that will cause it to execute an operating system command as the root user. This vulnerability was patched in OMI version 1.6.8-1 (released September 8th 2021).

Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing remote code execution.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-13 CVE Reserved
2021-09-15 CVE Published
2021-09-15 First Exploit
2021-11-03 Exploited in Wild
2021-11-17 KEV Due Date
2024-08-04 CVE Updated
2024-11-16 EPSS Updated

CWE

CWE-287: Improper Authentication

CAPEC

References (12)

URL	Tag	Source
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38647
https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure
https://censys.io/blog/understanding-the-impact-of-omigod-cve-2021-38647
https://attackerkb.com/topics/08O94gYdF1/cve-2021-38647

URL	Date	SRC
https://github.com/horizon3ai/CVE-2021-38647	2021-09-16
https://github.com/AlteredSecurity/CVE-2021-38647	2021-09-26
https://github.com/midoxnet/CVE-2021-38647	2021-09-15
https://github.com/corelight/CVE-2021-38647	2022-02-11
https://github.com/corelight/CVE-2021-38647-noimages	2022-02-11
https://github.com/SimenBai/CVE-2021-38647-POC-and-Demo-environment	2021-09-22
http://packetstormsecurity.com/files/164694/Microsoft-OMI-Management-Interface-Authentication-Bypass.html	2024-08-04

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38647	2023-12-28

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Azure Automation State Configuration Search vendor "Microsoft" for product "Azure Automation State Configuration"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Automation Update Management Search vendor "Microsoft" for product "Azure Automation Update Management"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Diagnostics \(lad\) Search vendor "Microsoft" for product "Azure Diagnostics \(lad\)"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Open Management Infrastructure Search vendor "Microsoft" for product "Azure Open Management Infrastructure"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Security Center Search vendor "Microsoft" for product "Azure Security Center"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Sentinel Search vendor "Microsoft" for product "Azure Sentinel"				-		-		Affected
Microsoft Search vendor "Microsoft"		Azure Stack Hub Search vendor "Microsoft" for product "Azure Stack Hub"				-		-		Affected
Microsoft Search vendor "Microsoft"		Container Monitoring Solution Search vendor "Microsoft" for product "Container Monitoring Solution"				-		-		Affected
Microsoft Search vendor "Microsoft"		Log Analytics Agent Search vendor "Microsoft" for product "Log Analytics Agent"				-		-		Affected
Microsoft Search vendor "Microsoft"		System Center Operations Manager Search vendor "Microsoft" for product "System Center Operations Manager"				-		-		Affected