CVE-2024-38944

9.8 CRITICAL

📋 TL;DR

This vulnerability allows remote attackers to execute arbitrary code on Intelight X-1L traffic controllers running Maxtime version 1.9.6. Attackers can exploit the /cgi-bin/generateForm.cgi endpoint with formID=142 to inject and execute malicious code. Organizations using these traffic control systems are affected.

💻 Affected Systems

Products:
  • Intelight X-1L Traffic Controller
Versions: Maxtime v1.9.6
Operating Systems: Embedded/Linux-based
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability affects the web interface component of the traffic controller system.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to take full control of traffic controllers, potentially causing traffic disruptions, safety hazards, or using the device as a foothold into connected networks.

🟠

Likely Case

Remote code execution leading to device compromise, data theft, or disruption of traffic control operations.

🟢

If Mitigated

Limited impact if proper network segmentation and access controls prevent external access to vulnerable endpoints.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability appears to be a code injection issue in a CGI endpoint that doesn't require authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: No

Instructions:

Contact Intelight for official patch information and upgrade guidance. Monitor vendor communications for security updates.

🔧 Temporary Workarounds

Block CGI Endpoint Access

linux

Restrict access to the vulnerable /cgi-bin/generateForm.cgi endpoint using firewall rules or web server configuration.

iptables -A INPUT -p tcp --dport 80 -m string --string "/cgi-bin/generateForm.cgi" --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string "/cgi-bin/generateForm.cgi" --algo bm -j DROP

Network Segmentation

all

Isolate traffic controllers in a separate network segment with strict access controls.

🧯 If You Can't Patch

  • Implement strict network access controls to prevent external access to traffic controller management interfaces
  • Deploy web application firewall (WAF) rules to block malicious requests to CGI endpoints

🔍 How to Verify

Check if Vulnerable:

Check if the system is running Maxtime v1.9.6 and test if /cgi-bin/generateForm.cgi?formID=142 endpoint is accessible and potentially vulnerable to code injection.

Check Version:

Check system documentation or web interface for version information (specific command unavailable)

Verify Fix Applied:

Verify that the vulnerable endpoint is no longer accessible or that code injection attempts are blocked.

📡 Detection & Monitoring

Log Indicators:

  • HTTP requests to /cgi-bin/generateForm.cgi with suspicious parameters
  • Unusual process execution or system modifications

Network Indicators:

  • HTTP requests containing shell commands or code injection patterns targeting the vulnerable endpoint

SIEM Query:

source="web_logs" AND uri="/cgi-bin/generateForm.cgi" AND (param="formID=142" OR suspicious_patterns)

🔗 References

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