CVE-2020-5722 — AI Deep Analysis Summary

🚨 **Essence**: A critical SQL Injection flaw in the HTTP interface of Grandstream UCM6200.…

🛡️ **Root Cause**: Unauthenticated Remote SQL Injection. 📉 **CWE**: Not explicitly mapped in data, but fundamentally a **Input Validation Failure** in HTTP request handling.…

🏢 **Affected Product**: Grandstream UCM6200 Series (IP PBX). 📅 **Vulnerable Versions**: • Firmware < **1.0.19.20** • Firmware < **1.0.20.17** ✅ **Safe**: Versions 1.0.19.20+ or 1.0.20.17+.

👑 **Privileges**: **Root** access! 📧 **Data Impact**: 1. Execute arbitrary shell commands as root. 2. Inject HTML into password reset emails (phishing/credential theft). ⚠️ This is effectively full server control.

🔓 **Auth Requirement**: **None**. It is **Unauthenticated**. 🌐 **Config**: Exploitable via crafted HTTP requests remotely. No login needed to trigger the injection. Extremely low barrier to entry for attackers.

💻 **Public Exploit**: **Yes**. 📂 **PoC Available**: • Nuclei Template: `CVE-2020-5722.yaml` on ProjectDiscovery GitHub. • PacketStorm Security references exist.…

🔍 **Self-Check**: 1. Check firmware version against <1.0.19.20 and <1.0.20.17. 2. Use **Nuclei** with the specific CVE template to scan for the SQL injection signature. 3.…

🩹 **Official Fix**: **Yes**. 📦 **Patch**: Update firmware to **1.0.19.20** or later, OR **1.0.20.17** or later. Grandstream released patches to address this specific SQL injection vector.

🚧 **No Patch Workaround**: 1. **Block Access**: Restrict HTTP interface access via Firewall (WAF) to trusted IPs only. 2. **Input Filtering**: If possible, block SQL injection patterns in WAF rules. 3.…

🔥 **Urgency**: **CRITICAL**. 🚨 **Priority**: **Immediate Action Required**. Since it allows **Root Shell Access** without authentication, this is a high-severity remote code execution (RCE) vulnerability.…