kevmap

Coverage › CVE-2021-38647

CVE-2021-38647 Unmapped

Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability

Vendor / product
Microsoft — Open Management Infrastructure (OMI)
Description (CISA)
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing remote code execution.
Added to KEV
2021-11-03
Due date
2021-11-17
Required action
Apply updates per vendor instructions.
Known ransomware use
Known
CWE
CWE-1390
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-38647
Elsewhere
cve.org · NVD · CISA KEV · JSON

ATT&CK techniques

No public source states how this vulnerability is exploited in ATT&CK terms.

The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2021-38647. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-1390) — here is why — and does not guess.

This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.

Sigma rules tagged with this CVE

1 rule in SigmaHQ carries the tag cve.2021-38647. These are shown as detection content for the CVE itself. Their ATT&CK tags are deliberately not rendered here: a rule author's tag is not an authoritative statement of how the vulnerability is exploited, and this page does not show techniques for unmapped entries.

Author: Nate Guagenti (neu5ron) · 2021-09-20 (modified 2025-11-03) · logsource: product=zeek service=http · ab6b1a39-a9ee-4ab4-b075-e83acf6e346b
Detects the exploitation of OMIGOD (CVE-2021-38647) which allows remote execute (RCE) commands as root with just a single unauthenticated HTTP request. Verify, successful, exploitation by viewing the HTTP client (request) body to see what was passed to the server (using PCAP). Within the client body is where the code execution would occur. Additionally, check the endpoint logs to see if suspicious commands or activity occurred within the timeframe of this HTTP request.
CVE tags: CVE-2021-38647