CVE-2025-59347
📋 TL;DR
Dragonfly Manager versions before 2.1.0 have disabled TLS certificate verification in HTTP clients, making them vulnerable to man-in-the-middle attacks. An attacker can intercept network traffic and provide invalid data during preheat jobs, causing denial of service and file integrity issues. This affects all Dragonfly users running vulnerable Manager instances.
💻 Affected Systems
- Dragonfly Manager
📦 What is this software?
Dragonfly by Linuxfoundation
⚠️ Risk & Real-World Impact
Worst Case
Adversary provides malicious data during preheat jobs, corrupting distributed files and causing widespread service disruption across the P2P network.
Likely Case
Network-level MITM attack leads to preheating of incorrect or corrupted data, causing downstream file integrity problems and partial service degradation.
If Mitigated
With proper network segmentation and TLS verification enabled, impact is limited to potential performance issues without data corruption.
🎯 Exploit Status
Requires network-level access to perform MITM attack against Manager's HTTP traffic. No authentication bypass needed as it targets the preheat job processing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1.0
Vendor Advisory: https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-98x5-jw98-6c97
Restart Required: No
Instructions:
1. Upgrade Dragonfly Manager to version 2.1.0 or later. 2. No configuration changes required as TLS verification is now enabled by default. 3. Verify Manager is functioning correctly after upgrade.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Dragonfly Manager network traffic to prevent MITM attacks
Monitor Preheat Jobs
allImplement monitoring for preheat job failures or data integrity issues
🧯 If You Can't Patch
- Deploy network-level TLS inspection to detect and block MITM attempts
- Implement strict network access controls limiting who can communicate with the Manager
🔍 How to Verify
Check if Vulnerable:
Check Dragonfly Manager version; if below 2.1.0, it is vulnerable.Check Version:
dragonfly-manager --versionVerify Fix Applied:
Verify Manager version is 2.1.0 or higher and check that preheat jobs complete successfully with valid TLS certificates.📡 Detection & Monitoring
Log Indicators:
- Failed preheat jobs
- TLS certificate validation errors
- Unexpected data sources in preheat logs
Network Indicators:
- Unusual network traffic patterns to/from Manager
- MITM detection alerts from network security tools
SIEM Query:
source="dragonfly-manager" AND ("preheat failed" OR "certificate" OR "TLS")