CVE-2024-28423
📋 TL;DR
Airflow-Diagrams v2.1.0 contains an arbitrary file upload vulnerability in the unsafe_load function that allows attackers to upload malicious YML files and execute arbitrary code. This affects all users running the vulnerable version of Airflow-Diagrams. The vulnerability is particularly dangerous because it can lead to complete system compromise.
💻 Affected Systems
- Airflow-Diagrams
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining remote code execution, data exfiltration, lateral movement, and persistent backdoor installation.
Likely Case
Unauthorized code execution leading to data theft, service disruption, or cryptocurrency mining malware deployment.
If Mitigated
Limited impact with proper file upload restrictions and input validation preventing exploitation.
🎯 Exploit Status
The vulnerability is straightforward to exploit with publicly available proof-of-concept code showing how to craft malicious YML files.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.1.1 or later
Vendor Advisory: https://github.com/bayuncao/vul-cve-15
Restart Required: Yes
Instructions:
1. Stop all Airflow-Diagrams services
2. Backup configuration files
3. Update to v2.1.1 or later using pip: pip install --upgrade airflow-diagrams
4. Restart services
5. Verify the fix is applied
🔧 Temporary Workarounds
Disable file upload functionality
allTemporarily disable or restrict file upload capabilities in Airflow-Diagrams configuration
# Edit configuration to disable unsafe_load or restrict file types
# Set upload_allowed_extensions to empty list or safe extensions only
Implement input validation
allAdd strict validation for YML file uploads before processing
# Add validation layer that checks file content before unsafe_load
# Reject files containing suspicious patterns or code execution attempts
🧯 If You Can't Patch
- Isolate affected systems from internet and restrict network access
- Implement strict file upload monitoring and alerting for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check if Airflow-Diagrams version is 2.1.0 using pip show airflow-diagrams or check package metadataCheck Version:
pip show airflow-diagrams | grep VersionVerify Fix Applied:
Verify version is 2.1.1 or later and test that malicious YML uploads are rejected📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to Airflow-Diagrams
- YML file processing errors
- Suspicious process execution following file upload
Network Indicators:
- Unexpected outbound connections from Airflow-Diagrams server
- Large data transfers following file uploads
SIEM Query:
source="airflow-diagrams" AND (event="file_upload" OR event="yml_processing") AND file_extension="yml"