CVE-2011-3556 — AI Deep Analysis Summary

🚨 **Essence**: A critical flaw in Oracle Java Runtime Environment (JRE) RMI component. 📉 **Consequences**: Attackers can compromise Confidentiality, Integrity, and Availability (CIA triad) remotely.…

🛡️ **Root Cause**: The vulnerability lies within the **Java Runtime Environment** component specifically related to **RMI (Remote Method Invocation)**.…

👥 **Affected Products**: Oracle Java SE JDK & JRE. 📦 **Specific Versions**: - JDK/JRE 7 - 6 Update 27 & earlier - 5.0 Update 31 & earlier - 1.4.2_33 & earlier - JRockit R28.1.4 & earlier

💻 **Attacker Actions**: Remote attackers can exploit this to: - **Break Confidentiality**: Access sensitive data. - **Break Integrity**: Modify system state. - **Break Availability**: Disrupt services. 🔓 **Privileges**: …

🔑 **Exploitation Threshold**: **Low**. 🌐 It is a **Remote** vulnerability. No local access or specific user interaction is mentioned as a prerequisite.…

💥 **Public Exploit**: **Yes**. 📜 A Python 3 Proof of Concept (PoC) is available on GitHub (`sk4la/cve_2011_3556`). It is based on an existing Metasploit module PoC by 'mihi'.…

🔍 **Self-Check**: 1. Check Java version against the affected list (e.g., < 6u27, < 7). 2. Scan for open RMI ports (default 1099). 3. Use vulnerability scanners detecting CVE-2011-3556 signatures. 4.…

🩹 **Official Fix**: **Yes**. 📅 Patched in the **October 2011 Critical Patch Update** by Oracle. - Ubuntu: USN-1263-1 - Red Hat: RHSA-2011:1384 - Oracle: Java CPU Oct 2011

🚧 **No Patch Workaround**: 1. **Disable RMI**: If not needed, disable the RMI service. 2. **Firewall Rules**: Block external access to RMI ports. 3. **Isolate**: Segment networks to prevent remote exploitation. 4.…

🔥 **Urgency**: **CRITICAL**. 🚨 Published in 2011, but since public PoCs exist and it affects core RMI security (CIA triad), it requires **immediate attention** for any legacy systems still running these vulnerable versio…