CVE-2024-50631
📋 TL;DR
This SQL injection vulnerability in Synology Drive Server's system syncing daemon allows remote attackers to execute write-only SQL commands against the database. It affects all Synology Drive Server versions before the patched releases, potentially compromising data integrity.
💻 Affected Systems
- Synology Drive Server
📦 What is this software?
Drive Server by Synology
Drive Server by Synology
Drive Server by Synology
Drive Server by Synology
⚠️ Risk & Real-World Impact
Worst Case
Attackers could manipulate or corrupt database content, potentially leading to data loss, service disruption, or privilege escalation through database manipulation.
Likely Case
Data tampering or corruption in the Drive Server database, potentially affecting file metadata, user permissions, or synchronization data.
If Mitigated
Limited to write operations only, preventing data exfiltration but still allowing data manipulation if exploited.
🎯 Exploit Status
Vulnerability is limited to write operations only (no data exfiltration). Attack vectors are unspecified in the advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.4-12699, 3.2.1-23280, 3.5.0-26085, or 3.5.1-26102 (depending on your version track)
Vendor Advisory: https://www.synology.com/en-global/security/advisory/Synology_SA_24_21
Restart Required: No
Instructions:
1. Log into DSM as administrator. 2. Open Package Center. 3. Find Synology Drive Server. 4. Click Update if available. 5. Alternatively, download the patched version from Synology's website and manually install.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Synology Drive Server to trusted networks only
Firewall Rules
allImplement firewall rules to limit access to Drive Server ports (default 6690)
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Monitor database logs for unusual write operations or SQL errors
🔍 How to Verify
Check if Vulnerable:
Check the installed version of Synology Drive Server in Package CenterCheck Version:
No CLI command; check via DSM Package Center interfaceVerify Fix Applied:
Verify the version number matches or exceeds the patched versions listed in the advisory📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in Drive Server logs
- Unexpected database write operations
Network Indicators:
- Unusual traffic patterns to Drive Server port 6690
- SQL injection patterns in network traffic
SIEM Query:
source="synology-drive" AND (error OR sql OR injection)