CVE-2021-43798 — AI Deep Analysis Summary

🚨 **Essence**: A critical **Path Traversal** vulnerability in Grafana. 📉 **Consequences**: Attackers can perform directory traversal to access **local files** on the server.…

🛡️ **CWE**: **CWE-22** (Improper Limitation of a Pathname to a Restricted Directory). 🔍 **Flaw**: The application fails to properly sanitize user input when serving static files or plugins.…

📦 **Affected Versions**: Grafana **8.0.0-beta1** through **8.3.0**. 🏢 **Vendor**: Grafana Labs. 📌 **Product**: Grafana (Open-source monitoring & visualization platform).…

💀 **Privileges**: **No Authentication Required** (Pre-Auth). 📂 **Data Access**: Attackers can read **arbitrary local files**.…

⚡ **Threshold**: **Extremely Low**. 🚫 **Auth**: No login credentials needed. 🎯 **Config**: Default configurations are vulnerable. The attack vector is simple HTTP requests with crafted paths.…

🔓 **Public Exploits**: **Yes**. Multiple PoCs are available on GitHub (e.g., by `taythebot`, `zer0yu`, `jas502n`, `ScorpionsMAX`). 🌍 **Wild Exploitation**: High.…

🔍 **Self-Check**: Use Nuclei templates or Python scripts provided in the references. 📋 **Feature**: Check if the Grafana version is between 8.0.0-beta1 and 8.3.0.…

✅ **Official Fix**: **Yes**. Grafana released patches in versions **8.3.1**, **8.2.7**, **8.1.8**, and **8.0.7**. 📅 **Date**: Patched on December 7, 2021.…

🚧 **Workaround**: If patching is impossible, restrict network access to the Grafana instance. 🛑 **Mitigation**: Place Grafana behind a Web Application Firewall (WAF) that blocks path traversal sequences (`../`).…

🔥 **Priority**: **CRITICAL / URGENT**. 📢 **Reason**: Pre-authentication, high impact (full file read), and widespread availability of exploits. ⏳ **Time**: Immediate action required.…