CVE-2025-6749
📋 TL;DR
This critical SQL injection vulnerability in huija bicycleSharingServer allows attackers to execute arbitrary SQL commands through the Title parameter in the searchAdminMessageShow function. Remote attackers can potentially access, modify, or delete database content. All users running affected versions are vulnerable.
💻 Affected Systems
- huija bicycleSharingServer
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, and potential remote code execution via database functions.
Likely Case
Unauthorized data access, privilege escalation, and potential data manipulation in the bicycle sharing system.
If Mitigated
Limited impact with proper input validation and database permissions restricting damage to non-critical data.
🎯 Exploit Status
Exploit disclosed in GitHub issue #6. SQL injection requires access to admin functionality but may be combined with other vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Commit after 7b8a3ba48ad618604abd4797d2e7cf3b5ac7625a
Vendor Advisory: https://github.com/huija/bicycleSharingServer/issues/6
Restart Required: Yes
Instructions:
1. Pull latest code from GitHub repository. 2. Verify commit hash is newer than 7b8a3ba48ad618604abd4797d2e7cf3b5ac7625a. 3. Rebuild and redeploy application. 4. Restart the bicycleSharingServer service.
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation to sanitize Title parameter before processing
Implement parameterized queries or prepared statements in AdminController.java
Web Application Firewall
allDeploy WAF with SQL injection rules to block malicious requests
Configure WAF to block SQL injection patterns in Title parameter
🧯 If You Can't Patch
- Implement network segmentation to restrict access to admin interface
- Enable database auditing and monitor for unusual SQL queries
🔍 How to Verify
Check if Vulnerable:
Check if current commit hash is 7b8a3ba48ad618604abd4797d2e7cf3b5ac7625a or older using git logCheck Version:
git log --oneline -1Verify Fix Applied:
Verify commit hash is newer than 7b8a3ba48ad618604abd4797d2e7cf3b5ac7625a and test SQL injection attempts are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts to admin interface
- Requests with SQL keywords in Title parameter
Network Indicators:
- HTTP requests containing SQL injection payloads in Title parameter
- Unusual database connection patterns
SIEM Query:
title:*SELECT* OR title:*UNION* OR title:*INSERT* OR title:*DELETE*