CVE-2025-45237
📋 TL;DR
This vulnerability allows attackers to bypass access controls and download a JSON configuration file containing sensitive account information from DBSyncer v2.0.6. The exposed data includes encrypted passwords that could potentially be decrypted. Any organization using the vulnerable version of DBSyncer is affected.
💻 Affected Systems
- DBSyncer
📦 What is this software?
Dbsyncer by Dbsyncer Project
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain encrypted passwords, decrypt them, and gain unauthorized access to database systems connected through DBSyncer, potentially leading to data exfiltration or system compromise.
Likely Case
Attackers access sensitive configuration data including encrypted credentials, which could be cracked offline or used in credential stuffing attacks against other systems.
If Mitigated
With proper network segmentation and access controls, the impact is limited to configuration exposure without direct system access.
🎯 Exploit Status
The exploit requires only HTTP GET requests to the vulnerable endpoint with no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Monitor the GitHub repository for updates and apply when released.
🔧 Temporary Workarounds
Block access to /config/download endpoint
allConfigure web server or firewall rules to block access to the vulnerable endpoint
# For nginx: location /config/download { deny all; }
# For Apache: <Location /config/download> Require all denied </Location>
Implement authentication middleware
allAdd authentication requirements before accessing configuration endpoints
🧯 If You Can't Patch
- Isolate DBSyncer instances behind firewalls with strict network access controls
- Rotate all database credentials stored in DBSyncer configuration files
🔍 How to Verify
Check if Vulnerable:
Attempt to access http://[dbsyncer-host]:[port]/config/download and check if configuration JSON is returned without authenticationCheck Version:
Check DBSyncer version in web interface or configuration filesVerify Fix Applied:
Verify that accessing /config/download endpoint returns access denied or requires authentication📡 Detection & Monitoring
Log Indicators:
- HTTP GET requests to /config/download endpoint
- Unauthorized access attempts to configuration endpoints
Network Indicators:
- Unusual traffic patterns to configuration endpoints
- External IPs accessing sensitive endpoints
SIEM Query:
source="web_server" AND (uri="/config/download" OR uri CONTAINS "config") AND response_code=200