CVE-2011-5010 — AI Deep Analysis Summary

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

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

📦 **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.

💀 **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…

⚡ **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.…

🔓 **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.

🔍 **Self-Check**: 1. Scan for Ctek SkyRouter devices. 2. Target URL: `apps/a3/cfg_ethping.cgi`. 3. Parameter: `u` (PINGADDRESS). 4.…

🩹 **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.

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

🔴 **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.