CVE-2025-6520
📋 TL;DR
This SQL injection vulnerability in Abis Technology BAPSIS allows attackers to execute arbitrary SQL commands through the application, potentially accessing, modifying, or deleting database content. It affects all BAPSIS versions before 202510271606. The vulnerability is particularly dangerous because it's a blind SQL injection, meaning attackers can infer database information even without direct output.
💻 Affected Systems
- Abis Technology BAPSIS
⚠️ 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, privilege escalation to administrative access, and potential lateral movement to other systems.
Likely Case
Unauthorized data access, data exfiltration, and potential authentication bypass leading to unauthorized system access.
If Mitigated
Limited impact due to network segmentation, database permissions restrictions, and input validation controls.
🎯 Exploit Status
SQL injection vulnerabilities typically have low exploitation complexity, especially when unauthenticated. The blind nature may require more sophisticated exploitation techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 202510271606 or later
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-25-0365
Restart Required: Yes
Instructions:
1. Download the latest BAPSIS version from Abis Technology. 2. Backup current installation and database. 3. Stop BAPSIS services. 4. Install the updated version. 5. Restart BAPSIS services. 6. Verify functionality.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection protection rules to block malicious requests.
Input Validation Filter
allImplement application-level input validation to reject SQL special characters.
🧯 If You Can't Patch
- Isolate the BAPSIS system from internet access and restrict internal network access.
- Implement strict database permissions, using least privilege principles for application database accounts.
🔍 How to Verify
Check if Vulnerable:
Check BAPSIS version in administration panel or configuration files. If version is earlier than 202510271606, the system is vulnerable.Check Version:
Check BAPSIS web interface administration panel or configuration files for version information.Verify Fix Applied:
Confirm BAPSIS version is 202510271606 or later and test SQL injection payloads are properly rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL-like patterns
- Requests containing SQL keywords (SELECT, UNION, INSERT, etc.)
Network Indicators:
- Unusual database connection patterns
- Large data transfers from database server
- Requests with encoded SQL payloads
SIEM Query:
source="bapsis_logs" AND ("SQL" OR "syntax" OR "SELECT" OR "UNION")