CVE-2020-11717
📋 TL;DR
CVE-2020-11717 is a critical SQL injection vulnerability in Programi Bilanc software that allows attackers to execute arbitrary SQL commands on the database. This affects users of Programi Bilanc Build 007 Release 014 31.01.2020. Successful exploitation could lead to complete database compromise.
💻 Affected Systems
- Programi Bilanc
📦 What is this software?
Bilanc by Bilanc
⚠️ Risk & Real-World Impact
Worst Case
Complete database takeover including data theft, data manipulation, privilege escalation, and potential remote code execution on the database server.
Likely Case
Unauthorized data access, data exfiltration, and potential authentication bypass leading to administrative access.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions in place.
🎯 Exploit Status
Public exploit code is available on Packet Storm Security, making exploitation trivial for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://bilanc.com/en/
Restart Required: No
Instructions:
No official patch available. Contact vendor for updated version or implement workarounds.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with SQL injection rules to block malicious requests
Input Validation
allImplement strict input validation on all user inputs to reject SQL injection patterns
🧯 If You Can't Patch
- Isolate the application behind a reverse proxy with strict input filtering
- Implement network segmentation to limit access to the vulnerable system
🔍 How to Verify
Check if Vulnerable:
Check if running Programi Bilanc Build 007 Release 014 31.01.2020. Test endpoints with SQL injection payloads (use authorized testing only).Check Version:
Check application version in program interface or configuration filesVerify Fix Applied:
Verify updated version from vendor or test that SQL injection payloads no longer work.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL patterns
- Unexpected database queries
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.)
- Unusual database connection patterns
SIEM Query:
source="application_logs" AND ("SQL syntax" OR "unclosed quotation" OR "syntax error")🔗 References
- http://packetstormsecurity.com/files/160628/Programi-Bilanc-Build-007-Release-014-31.01.2020-SQL-Injection.html
- https://bilanc.com/en/
- https://seclists.org/fulldisclosure/2020/Dec/36
- http://packetstormsecurity.com/files/160628/Programi-Bilanc-Build-007-Release-014-31.01.2020-SQL-Injection.html
- https://bilanc.com/en/
- https://seclists.org/fulldisclosure/2020/Dec/36
