CVE-2011-5010 — AI Deep Analysis Summary

Q: Who is affected? (Versions/Components)

📦 **Affected**: **Ctek SkyRouter**. 📏 **Versions**: **4200 to 4300**. 🔧 **Component**: `apps/a3/cfg_ethping.cgi`. ⚠️ Note: Vendor listed as 'n/a' in data, but product is clearly Ctek.

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

🔓 **Public Exploit**: **YES**. 📜 **Sources**: Exploit-DB #18172, Metasploit module (issue #5610), SecurityFocus BID #50867. 🔥 **Status**: Wildly exploitable. Proof-of-Concepts and full exploits are available.

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

🩹 **Fix**: **Patch Available**. 📅 **Published**: Dec 25, 2011. ✅ **Action**: Update firmware to a version **> 4300** or apply vendor-specific security patches. Check Ctek support for legacy router updates.

Q: Is it urgent? (Priority Suggestion)

🔴 **Urgency**: **CRITICAL**. ⚠️ **Priority**: **P1 (Immediate)**. 📉 **Reason**: High impact (RCE), low barrier to entry (public exploits), and affects embedded infrastructure. Immediate patching or isolation is required.

Updated May 08, 2026

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**: Arbitrary Command Execution in `cfg_ethping.cgi`.
💥 **Consequences**: Attackers inject shell meta-characters into the `PINGADDRESS` parameter (`u`).…

Read full answer (login)

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-78 (OS Command Injection)**.
🔍 **Flaw**: The `apps/a3/cfg_ethping.cgi` script fails to sanitize user input.…

Read full answer (login)

Q3Who is affected? (Versions/Components)

📦 **Affected**: **Ctek SkyRouter**.
📏 **Versions**: **4200 to 4300**.
🔧 **Component**: `apps/a3/cfg_ethping.cgi`.
⚠️ Note: Vendor listed as 'n/a' in data, but product is clearly Ctek.

Q4What can hackers do? (Privileges/Data)

💀 **Capabilities**: **Remote Code Execution (RCE)**.
👑 **Privileges**: Commands execute with the privileges of the web server process (often root or high-privilege user in embedded devices).
📂 **Data**: Full system compr…

Read full answer (login)

Q5Is exploitation threshold high? (Auth/Config)

⚡ **Threshold**: **LOW**.
🌐 **Auth**: Likely **Remote** (unauthenticated) or low-privilege authenticated, as it targets a CGI script often accessible via web interface.
📝 **Config**: No complex setup needed.…

Read full answer (login)

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

🔓 **Public Exploit**: **YES**.
📜 **Sources**: Exploit-DB #18172, Metasploit module (issue #5610), SecurityFocus BID #50867.
🔥 **Status**: Wildly exploitable. Proof-of-Concepts and full exploits are available.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: 
Scan for Ctek SkyRouter devices.
Target URL: `apps/a3/cfg_ethping.cgi`.
Parameter: `u` (PINGADDRESS).
…

Read full answer (login)

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Fix**: **Patch Available**.
📅 **Published**: Dec 25, 2011.
✅ **Action**: Update firmware to a version **> 4300** or apply vendor-specific security patches. Check Ctek support for legacy router updates.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: 
1. **Block Access**: Restrict access to `cfg_ethping.cgi` via firewall/WAF.
2.…

Read full answer (login)

Q10Is it urgent? (Priority Suggestion)

🔴 **Urgency**: **CRITICAL**.
⚠️ **Priority**: **P1 (Immediate)**.
📉 **Reason**: High impact (RCE), low barrier to entry (public exploits), and affects embedded infrastructure. Immediate patching or isolation is required.

Continue exploring

Vulnerability detail Full AI analysis (login) n/a