CVE-2000-0071 — AI Deep Analysis Summary

🚨 **Essence**: IIS 4.0 leaks real file paths. 📂 **Consequences**: Attackers request non-existent `.ida`/`.idq` files to expose the server's root directory structure.…

🛡️ **Root Cause**: Poor access control & permission handling in IIS 4.0. 🐛 **Flaw**: The server reveals internal path details when handling specific invalid requests for `.ida` and `.idq` extensions.…

🖥️ **Affected**: Microsoft IIS 4.0. 📅 **Timeline**: Disclosed Feb 4, 2000. 📦 **Product**: Internet Information Services (IIS). 🚫 **Vendor**: n/a (Microsoft implied).

🕵️ **Hackers Can**: Enumerate directory structures. 📂 **Data Exposed**: Real file root paths. 🔓 **Privileges**: No direct code exec, but enables path traversal or targeted attacks. 🎯 **Goal**: Reconnaissance.

🔓 **Auth Required**: None (Remote). ⚙️ **Config**: Default IIS 4.0 setup vulnerable. 📶 **Threshold**: Low. Simple HTTP requests to `.ida`/`.idq` trigger the leak. 🚀 **Ease**: Trivial.

📢 **Public Exp**: Yes. 📜 **References**: Bugtraq mailing list posts from Jan 2000. 🔗 **Links**: marc.info archives confirm active discussion and exploitation techniques.…

🔍 **Self-Check**: Send requests to `*.ida` and `*.idq` for non-existent files. 👀 **Look For**: HTTP error responses containing absolute file paths. 📡 **Scan**: Check for path leakage in error headers/body.…

🩹 **Fix**: Patch IIS 4.0. 📉 **Status**: Vulnerable version is obsolete. 🛑 **Mitigation**: Update to newer IIS versions or apply Microsoft security patches from that era. 📜 **Official**: Yes, via vendor updates.

🚧 **Workaround**: Disable `.ida` and `.idq` extensions if not needed. 🚫 **Block**: Restrict access to these handlers. 🛡️ **Defense**: Use Web Application Firewall (WAF) to block path leakage errors.…

⚠️ **Urgency**: Low for modern systems. 📅 **Age**: 20+ years old. 🏚️ **Context**: IIS 4.0 is ancient. 📉 **Priority**: Critical only if running legacy isolated systems. 🚫 **General**: Ignore for modern infrastructure.