CVE-2021-38647 — AI Deep Analysis Summary

🚨 **CVE-2021-38647 (OMIGOD)** is a critical **Unauthenticated Remote Code Execution (RCE)** flaw. It allows attackers to execute arbitrary commands as **root** on affected Azure Linux VMs.…

🛡️ **Root Cause:** **Authorization Bypass**. The vulnerability stems from a flaw in the **Open Management Infrastructure (OMI)** agent. Specifically, the agent fails to properly validate the **Authorization header**.…

📦 **Affected Components:** Microsoft **Azure Open Management Infrastructure (OMI)**. Specifically, versions **< omi-1.6.8-1**.…

💣 **Attacker Capabilities:** Hackers gain **Full Root Privileges**. They can execute **any shell command** or script remotely.…

⚡ **Exploitation Threshold: LOW**. No authentication is required. No user interaction is needed. The attack vector is **Network** accessible.…

🔓 **Public Exploits Available:** YES. Multiple PoCs are public on GitHub (e.g., by **Wiz**, **Horizon3.ai**, **Corelight**). Scripts exist to easily execute commands like `id` or custom payloads.…

🔍 **Self-Check Methods:** 1. Use the **OMIGOOD** scanner by Horizon3.ai to scan Azure subscriptions for vulnerable VMs. 🛠️ 2.…

🩹 **Official Fix:** YES. Microsoft released an update. The vulnerability is fixed in **OMI version 1.6.8-1** and later. You must update the OMI agent on all affected Azure Linux VMs immediately. 📥✅

🚧 **No Patch Workaround:** If you cannot patch immediately, **block network access** to the OMI ports (5985/5986) from untrusted networks using Network Security Groups (NSGs) or Firewalls.…

🔴 **Urgency: CRITICAL.** This is a **CVSS 9.8** (Critical) severity vulnerability. It is actively exploited in the wild. Prioritize patching all Azure Linux VMs with OMI agents **IMMEDIATELY**. Do not delay. ⏳🚨