CVE-2021-27104 — AI Deep Analysis Summary

🚨 **Essence**: Accellion FTA suffers from **OS Command Injection**. 📉 **Consequences**: Attackers can execute **illegal OS commands** on the server. This bypasses security controls and compromises system integrity.

🛡️ **Root Cause**: **Improper Input Filtering**. The system fails to sanitize special characters or commands in external input data before constructing OS executable commands.…

🏢 **Affected**: **Accellion FTA** (Enterprise Content Firewall). 🌍 **Vendor**: Accellion (USA). ⚠️ **Scope**: Any instance of this product not patched against this specific CVE.

💀 **Capabilities**: Hackers gain the ability to run **arbitrary OS commands**. 🔓 **Privileges**: Likely **system-level access** depending on the service account running the FTA.…

🔑 **Threshold**: **Low to Medium**. ⚙️ **Config**: Requires interaction with the FTA's input mechanisms. 🚪 **Auth**: Depends on network exposure; if exposed to the internet, unauthenticated exploitation is possible.

📢 **Public Exp?**: **Yes**. A reference exists on GitHub (`accellion/CVEs`). 🔍 **PoC**: Available via the provided link. 🌐 **Wild Exploitation**: High risk due to public availability of exploit details.

🔍 **Self-Check**: Scan for **Accellion FTA** signatures. 🧪 **Test**: Input special characters (e.g., `;`, `|`, `&`) into input fields.…

🩹 **Official Fix**: **Yes**. Accellion released patches. 📅 **Published**: Feb 16, 2021. 🔄 **Action**: Update to the latest secure version immediately. 📎 **Ref**: Check official Accellion advisories.

🚧 **No Patch?**: Implement **Input Validation**. 🛑 **WAF**: Deploy Web Application Firewall rules to block command injection patterns. 🧱 **Network**: Restrict access to FTA management interfaces.…

🔥 **Urgency**: **CRITICAL**. 🚨 **Priority**: **P1**. ⏳ **Time**: Patch immediately. This is a remote code execution (RCE) vulnerability with public exploits. Delay increases breach risk significantly.