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CVE-2024-4306 — AI Deep Analysis Summary

CVSS 9.9 · Critical

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: HubBank 1.0.2 allows uploading malicious PHP files via the 'upload document' field. 💥 **Consequences**: Attackers execute **Webshells**, gaining full control over the server.…

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-434** (Unrestricted Upload of File with Dangerous Type). The application fails to validate file types, allowing executable PHP scripts to be uploaded and executed.

Q3Who is affected? (Versions/Components)

👥 **Affected**: **HubBank** by vendor **Ofofonobs**. Specifically version **1.0.2**. If you are running this specific version, you are vulnerable.

Q4What can hackers do? (Privileges/Data)

💻 **Attacker Capabilities**: Full **Webshell execution**. This means: Read/Write files, execute system commands, steal sensitive banking data, and potentially pivot to other internal systems.

Q5Is exploitation threshold high? (Auth/Config)

🔓 **Exploitation Threshold**: **Low**. Requires **Authenticated User** access (PR:L). No UI interaction needed (UI:N). Network accessible (AV:N). Once logged in, upload is trivial.

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

📜 **Public Exploit**: No specific PoC code listed in the data. However, the vulnerability type (Unrestricted Upload) is well-known. Exploitation is likely **manual** using standard PHP webshells.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: 1. Log in as a registered user. 2. Navigate to 'upload document'. 3. Attempt to upload a `.php` file with a simple `<?php phpinfo(); ?>` payload. 4. Check if it executes.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Fix Status**: Vendor **Ofofonobs** has not released a specific patch version in the data. Reference: [Incibe Notice](https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-hubbank).…

Q9What if no patch? (Workaround)

🚧 **Workaround**: If no patch: 1. **Disable** the 'upload document' feature if possible. 2. Implement strict **WAF rules** to block PHP file uploads. 3. Restrict upload directory execution permissions.

Q10Is it urgent? (Priority Suggestion)

⚡ **Priority**: **CRITICAL (High)**. CVSS Score is **High** (likely 9.0+ based on vector). Immediate action required: Patch, isolate, or mitigate upload functionality immediately.