CVE-2011-4723 — AI Deep Analysis Summary

🚨 **Essence**: D-Link DIR-300 routers store passwords in **plaintext**. <br>💥 **Consequences**: Attackers can retrieve sensitive info using unknown vectors. Your login credentials are exposed!

🛡️ **Root Cause**: **Encryption Problem**. The device fails to hash or encrypt stored passwords, keeping them in **clear text**. <br>⚠️ **Flaw**: Lack of secure storage mechanisms for user credentials.

📦 **Affected**: **D-Link DIR-300** routers. <br>🏢 **Vendor**: D-Link (Taiwan). <br>📅 **Published**: Dec 20, 2011.

🕵️ **Hackers Can**: Extract **sensitive information** (passwords). <br>🔓 **Privileges**: Access to account credentials, potentially leading to full device compromise or network intrusion.

🔑 **Threshold**: **Medium/Low**. <br>⚙️ **Config**: Requires exploiting the storage flaw.…

📜 **Public Exp?**: **Yes**. <br>🔗 **Reference**: SecurityLab.ru (PT-2011-30). <br>⚠️ **PoC**: Listed in references, indicating proof-of-concept or detailed analysis is available.

🔍 **Self-Check**: Scan for **D-Link DIR-300** devices. <br>📋 **Feature**: Check if password storage is unencrypted. Use vulnerability scanners targeting this specific CVE ID.

🩹 **Fixed?**: **Likely Yes**. <br>📅 **Date**: 2011. <br>💡 **Action**: Check for official firmware updates from D-Link. Most vendors patched this era of vulnerabilities.

🚧 **No Patch?**: **Mitigation**: <br>1️⃣ Change default passwords to strong ones. <br>2️⃣ Isolate the router from untrusted networks. <br>3️⃣ Monitor for unauthorized access attempts.

🔥 **Urgency**: **High (Historical)**. <br>📉 **Priority**: Critical for legacy devices. If you still use DIR-300, **replace it immediately**. It is an old, unpatched risk in modern contexts.