CVE-2010-2227 — AI Deep Analysis Summary

🚨 **Essence**: Apache Tomcat fails to handle invalid `Transfer-Encoding` headers correctly.…

🛡️ **Root Cause**: Improper input validation of the `Transfer-Encoding` header.…

📦 **Affected Products**: Apache Tomcat (Jakarta project). 📅 **Affected Versions**: • 5.5.0 to 5.5.29 • 6.0.0 to 6.0.27 • 7.0.0 beta. 🌐 **Context**: Lightweight Web app server for JSP, used in small/medium systems.

🕵️ **Attacker Actions**: Send a **malformed header** via HTTP request. 🎯 **Goals**: 1. **DoS**: Crash the application (interrupt service). 2. **Info Leak**: Potentially access sensitive data.…

🔓 **Threshold**: **LOW**. 🌍 **Auth**: Remote attackers can exploit this without authentication. ⚙️ **Config**: Requires only sending a specific HTTP header. No complex setup needed.

📜 **Public Exp?**: **No**. 🚫 **PoC**: The `pocs` array is empty in the provided data. 📢 **Status**: References exist (HP Security Bulletin, Tomcat Dev mailing lists), but no public exploit code is listed.

🔍 **Self-Check**: 1. Check Tomcat version against affected ranges (5.5.x, 6.0.x, 7.0.0 beta). 2. Monitor logs for crashes or DoS events. 3. Inspect HTTP headers for malformed `Transfer-Encoding` values.…

🩹 **Official Fix**: **Yes**. ✅ **Action**: Upgrade to a patched version. 📚 **References**: Tomcat Security pages for v6 and v7 confirm fixes. HP Security Bulletin (HPSBUX02860) also addresses this.

🛠️ **Workaround**: If patching is impossible, implement **WAF rules** to block or sanitize malformed `Transfer-Encoding` headers. 🚧 **Mitigation**: Restrict access to Tomcat or monitor for DoS patterns.…

🔥 **Urgency**: **HIGH**. 📅 **Published**: July 13, 2010. 🚨 **Reason**: Remote DoS is easy to trigger. Even without code execution, service disruption is critical for web servers.…