Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: IIS 5.0 mishandles the `Translate: f` header + trailing slash `/`.
💥 **Consequence**: Remote source code leakage. Attackers get raw script files instead of executed output.

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: Improper input validation in HTTP request parsing.
🔍 **Flaw**: The server incorrectly invokes the script engine when specific headers and URL structures are combined.

Question 3

Who is affected? (Versions/Components)

Accepted Answer

📦 **Affected**: Microsoft IIS 5.0.
💻 **OS**: Bundled with Windows OS (specifically Windows 2000 era).

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

🕵️ **Hackers' Power**: Read sensitive source code.
📄 **Data**: ASP/VBScript/JS files. No authentication needed for the read.

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

🔓 **Threshold**: **LOW**.
🌐 **Auth**: None required.
📡 **Config**: Standard HTTP request modification. Easy to trigger remotely.

Question 6

Is there a public Exp? (PoC/Wild Exploitation)

Accepted Answer

📢 **Public Exp?**: Yes.
📜 **Evidence**: MS00-058 advisory and Bugtraq discussions confirm active exploitation and PoCs existed in 2000.

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check**: Send HTTP request with `Translate: f` header to a URL ending in `/`.
👀 **Result**: If you see source code instead of HTML/404, you are vulnerable.

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

✅ **Fixed?**: Yes.
🩹 **Patch**: Microsoft released **MS00-058** security bulletin. Apply the official update.

Question 9

What if no patch? (Workaround)

Accepted Answer

🚧 **No Patch?**: Block external access to IIS.
🛑 **Mitigation**: Use firewall rules to restrict HTTP traffic or disable IIS if not needed.

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

⚠️ **Urgency**: **HIGH** (Historically).
📅 **Context**: Critical for legacy systems. If running IIS 5.0 today, patch immediately or isolate.

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CVE-2000-0778 — AI Deep Analysis Summary

Q1What is this vulnerability? (Essence + Consequences)

Q2Root Cause? (CWE/Flaw)

Q3Who is affected? (Versions/Components)

Q4What can hackers do? (Privileges/Data)

Q5Is exploitation threshold high? (Auth/Config)

Q6Is there a public Exp? (PoC/Wild Exploitation)

Q7How to self-check? (Features/Scanning)

Q8Is it fixed officially? (Patch/Mitigation)

Q9What if no patch? (Workaround)

Q10Is it urgent? (Priority Suggestion)

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