CVE-2021-21978 — AI Deep Analysis Summary

🚨 **Essence**: A Remote Code Execution (RCE) flaw in VMware View Planner. 📉 **Consequences**: Attackers can upload malicious files and execute arbitrary code within the `logupload` Docker container.…

🛡️ **Root Cause**: Improper input validation & lack of authorization. 🔍 **Flaw**: The log upload feature allows users to control the file path.…

🏢 **Vendor**: VMware. 📦 **Product**: VMware View Planner. 📅 **Affected Versions**: Version 4.x prior to 4.6. ⚠️ **Specific Component**: The `logupload` web application container.

🕵️ **Privileges**: Unauthenticated attackers with network access. 💻 **Action**: Upload crafted files → Execute commands. 📂 **Data**: Remote Code Execution (RCE) inside the container.…

🔓 **Auth Level**: LOW. No authentication required. 🌐 **Access**: Only requires network access to the View Planner Harness. 🚪 **Entry Point**: The unauthenticated log upload feature. 🚀 **Ease**: Very easy to exploit.

💣 **Public Exp**: YES. Multiple PoCs available on GitHub (e.g., GreyOrder, me1ons). 🛠️ **Tools**: Go-based scripts and Nuclei templates exist. 📈 **Status**: Wild exploitation is possible and documented.…

🔍 **Scan**: Use Nuclei templates (`CVE-2021-21978.yaml`). 📡 **Check**: Look for the `/logupload` endpoint. 📂 **Verify**: Attempt to access the log upload feature without credentials.…

🛡️ **Official Fix**: YES. VMware released VMSA-2021-0003. ✅ **Solution**: Upgrade to VMware View Planner 4.6 Security Patch 1 or later. 📥 **Action**: Apply the vendor patch immediately.

🚧 **No Patch?**: Block external access to the `logupload` service. 🛑 **Network**: Restrict firewall rules to trusted IPs only.…

🔥 **Urgency**: CRITICAL. 🚨 **Priority**: P1. ⚡ **Reason**: Unauthenticated RCE with public exploits. 🏃 **Action**: Patch immediately. ⏳ **Risk**: High likelihood of automated scanning and exploitation in the wild.