CVE-2024-4040 — AI Deep Analysis Summary

Q: Who is affected? (Versions/Components)

📦 **Affected**: **CrushFTP** versions **10.7.1** and **11.1.0** *and earlier*. 🌍 Applies to **all platforms** running these vulnerable versions.

Q: What can hackers do? (Privileges/Data)

💀 **Attacker Capabilities**: 1. Read sensitive files outside the VFS sandbox. 📂 2. Bypass authentication mechanisms. 🔓 3. Escalate to **Administrative Access**. 👑 4. Perform **Remote Code Execution (RCE)**. 💥

Q: Is exploitation threshold high? (Auth/Config)

⚡ **Exploitation Threshold**: **LOW**. - **Auth**: Unauthenticated (No login needed). 🔑❌ - **Access**: Remote (Network-based). 🌐 - **Complexity**: Low (AC:L). 📉

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

🔓 **Public Exploits**: **YES**. Multiple PoCs and scanners are available on GitHub (e.g., `airbus-cert`, `tr4c3rs`, `tucommenceapousser`). Wild exploitation is highly likely given the ease of access. ⚠️

Q: Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: **YES**. The vendor (CrushFTP) has released updates. 📢 Check the official **Vendor Advisory** links for the latest secure versions (10.7.1+ or 11.1.0+).

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. - **CVSS**: High impact (C:H, I:H, A:H). 📈 - **Status**: Unauthenticated RCE. 💣 - **Action**: Patch **IMMEDIATELY**. This is a zero-day style threat with public exploits. 🏃♂️💨

Updated May 06, 2026 CVSS 9.8 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: CrushFTP suffers from a **Code Injection** flaw allowing **VFS Sandbox Escape**.…

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Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-1336** (Improper Handling of Insufficiently Unique Resources).…

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Q3Who is affected? (Versions/Components)

📦 **Affected**: **CrushFTP** versions **10.7.1** and **11.1.0** *and earlier*. 🌍 Applies to **all platforms** running these vulnerable versions.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Capabilities**: 
Read sensitive files outside the VFS sandbox. 📂
Bypass authentication mechanisms. 🔓
Escalate to **Administrative Access**. 👑
Perform **Remote Code Execution (RCE)**. 💥

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Exploitation Threshold**: **LOW**. 
- **Auth**: Unauthenticated (No login needed). 🔑❌
- **Access**: Remote (Network-based). 🌐
- **Complexity**: Low (AC:L). 📉

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

🔓 **Public Exploits**: **YES**. Multiple PoCs and scanners are available on GitHub (e.g., `airbus-cert`, `tr4c3rs`, `tucommenceapousser`). Wild exploitation is highly likely given the ease of access. ⚠️

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Use Python scanners like `scan_host.py` or `scan_logs.py`. These scripts attempt to read external files; if successful, they output `Vulnerable`.…

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Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: **YES**. The vendor (CrushFTP) has released updates. 📢 Check the official **Vendor Advisory** links for the latest secure versions (10.7.1+ or 11.1.0+).

Q9What if no patch? (Workaround)

🚧 **No Patch?**: 
**Isolate**: Restrict network access to the CrushFTP service. 🚫
**WAF**: Deploy Web Application Firewall rules to block suspicious VFS escape patterns. 🛡️
…

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Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 
- **CVSS**: High impact (C:H, I:H, A:H). 📈
- **Status**: Unauthenticated RCE. 💣
- **Action**: Patch **IMMEDIATELY**. This is a zero-day style threat with public exploits. 🏃‍♂️💨

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Vulnerability detail Full AI analysis (login) CrushFTP CWE-1336