CVE-2022-2111
📋 TL;DR
CVE-2022-2111 is an unrestricted file upload vulnerability in InvenTree inventory management software that allows attackers to upload malicious files to the server. This affects all users running InvenTree versions prior to 0.7.2. Successful exploitation could lead to remote code execution or server compromise.
💻 Affected Systems
- InvenTree
📦 What is this software?
Inventree by Inventree Project
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Server compromise allowing file system access, data exfiltration, and potential privilege escalation.
If Mitigated
File uploads blocked or properly validated, limiting impact to denial of service if malicious files are uploaded.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.7.2 and later
Vendor Advisory: https://github.com/inventree/inventree/commit/26bf51c20a1c9b3130ac5dd2e17649bece5ff84f
Restart Required: Yes
Instructions:
1. Backup your InvenTree database and configuration. 2. Update to InvenTree version 0.7.2 or later using pip: 'pip install --upgrade inventree'. 3. Restart the InvenTree service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Disable file upload functionality
allTemporarily disable file upload features in InvenTree configuration
Edit InvenTree configuration to remove or restrict file upload endpoints
Implement web application firewall rules
allBlock malicious file uploads at the network perimeter
Configure WAF to block file uploads with dangerous extensions (.php, .exe, .sh, etc.)
🧯 If You Can't Patch
- Implement strict file type validation at the application level
- Run InvenTree in a containerized environment with minimal privileges
🔍 How to Verify
Check if Vulnerable:
Check InvenTree version: if version is less than 0.7.2, system is vulnerable.Check Version:
python -c "import inventree; print(inventree.__version__)"Verify Fix Applied:
Verify version is 0.7.2 or higher and test file upload functionality with restricted file types.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads, especially with executable extensions
- Failed file validation attempts
- Unexpected process execution
Network Indicators:
- HTTP POST requests to upload endpoints with suspicious file types
- Unusual outbound connections from InvenTree server
SIEM Query:
source="inventree" AND (url="*upload*" OR method="POST") AND (file_extension="php" OR file_extension="exe" OR file_extension="sh")🔗 References
- https://github.com/inventree/inventree/commit/26bf51c20a1c9b3130ac5dd2e17649bece5ff84f
- https://huntr.dev/bounties/a0e5c68e-0f75-499b-bd7b-d935fb8c0cd1
- https://github.com/inventree/inventree/commit/26bf51c20a1c9b3130ac5dd2e17649bece5ff84f
- https://huntr.dev/bounties/a0e5c68e-0f75-499b-bd7b-d935fb8c0cd1
