CVE-2024-44809
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on servers running Pi Camera version 1.0 by sending malicious input to the 'position' parameter in tilt.php. The exploit requires no authentication and runs with web server privileges, affecting anyone using this specific version of the Raspberry Pi camera software.
💻 Affected Systems
- Pi Camera project by RECANTHA
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attacker to install malware, steal data, pivot to internal networks, or use the device for botnet activities.
Likely Case
Attacker gains shell access to the Raspberry Pi, can modify camera settings, access local files, and potentially compromise other devices on the same network.
If Mitigated
Limited impact if server runs with minimal privileges, network segmentation prevents lateral movement, and regular monitoring detects exploitation attempts.
🎯 Exploit Status
Exploitation is straightforward - attackers can send crafted HTTP GET requests with shell commands in the position parameter. The Medium article provides detailed exploitation examples.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: No official vendor advisory found
Restart Required: No
Instructions:
1. Remove or disable the tilt.php script
2. Implement input validation and sanitization
3. Consider using parameterized commands or safe APIs
4. Update to a patched version if/when available
🔧 Temporary Workarounds
Disable vulnerable script
linuxRemove or rename the tilt.php file to prevent exploitation
sudo mv /var/www/html/tilt.php /var/www/html/tilt.php.disabled
sudo systemctl reload apache2
Input validation via .htaccess
linuxBlock malicious patterns in the position parameter using mod_rewrite
Add to .htaccess: RewriteEngine On
RewriteCond %{QUERY_STRING} position=.*[;&|`].* [NC]
RewriteRule ^tilt\.php$ - [F,L]
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the Pi Camera from other systems
- Deploy a web application firewall (WAF) with RCE protection rules
🔍 How to Verify
Check if Vulnerable:
Check if tilt.php exists and contains unsanitized shell_exec calls with the position parameter: grep -n "shell_exec.*\$_GET\[\"position\"\]" /var/www/html/tilt.phpCheck Version:
Check git repository or project files for version indicators: cat /var/www/html/README.md | grep -i versionVerify Fix Applied:
Verify tilt.php is removed/disabled and test with safe input: curl 'http://localhost/tilt.php?position=10' should return error or safe output📡 Detection & Monitoring
Log Indicators:
- HTTP requests to tilt.php with unusual position values containing shell metacharacters (;, &, |, `)
- Web server error logs showing command execution failures
- Unusual process spawns from web server user
Network Indicators:
- HTTP GET requests with encoded shell commands in query parameters
- Unusual outbound connections from the Raspberry Pi
SIEM Query:
source="web_logs" AND uri="/tilt.php" AND query="*position=*[;&|`]*"