CVE-2024-12217
📋 TL;DR
This vulnerability in the gradio-app/gradio repository allows attackers to bypass file access restrictions on Windows systems using NTFS Alternate Data Streams syntax. It enables unauthorized reading of files that should be blocked, affecting users running vulnerable versions of gradio on Windows.
💻 Affected Systems
- gradio-app/gradio
⚠️ 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
Attackers could read sensitive system files, configuration files, or application data that should be protected, potentially leading to credential theft, data exfiltration, or further system compromise.
Likely Case
Unauthorized access to application-specific files that were intended to be restricted, potentially exposing configuration data, temporary files, or other application resources.
If Mitigated
With proper file system permissions and additional access controls, the impact would be limited to files the application already has permission to access.
🎯 Exploit Status
The vulnerability is publicly documented with proof-of-concept examples. Exploitation requires the ability to interact with the gradio application's file access functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check latest gradio releases for fix
Vendor Advisory: https://huntr.com/bounties/0439bf3d-cb38-43a5-8314-0fadf85cc5a0
Restart Required: Yes
Instructions:
1. Update to the latest version of gradio that includes the fix. 2. Verify the blocked_path function properly handles NTFS Alternate Data Streams syntax. 3. Restart the application.
🔧 Temporary Workarounds
Implement additional path validation
windowsAdd custom validation to reject paths containing NTFS Alternate Data Streams syntax (::) before blocked_path check
# Add to file access logic: if '::' in requested_path: raise AccessDeniedError
Restrict application permissions
windowsRun gradio with minimal file system permissions to limit accessible directories
# Use Windows ACLs to restrict gradio process to specific directories
🧯 If You Can't Patch
- Implement network-level controls to restrict access to the gradio application
- Deploy on non-Windows operating systems where NTFS ADS is not a factor
🔍 How to Verify
Check if Vulnerable:
Test if the application allows file access using paths with '::$DATA' suffix on WindowsCheck Version:
pip show gradio | grep VersionVerify Fix Applied:
Verify that paths with NTFS Alternate Data Streams syntax (like 'C:/tmp/secret.txt::$DATA') are properly blocked📡 Detection & Monitoring
Log Indicators:
- Multiple failed file access attempts with unusual path patterns
- File access logs showing paths with '::' characters
Network Indicators:
- Unusual patterns of file access requests to the gradio application
SIEM Query:
source="gradio_logs" AND (path="*::*" OR error="AccessDenied")