CVE-2024-43776
📋 TL;DR
This SQL injection vulnerability in Easytest Online Test Platform allows authenticated attackers to execute arbitrary SQL commands via the qlevel parameter in the mock exam function. Attackers could potentially read, modify, or delete database content, including sensitive user data. All users of Easytest Online Test Platform version 24E01 and earlier are affected.
💻 Affected Systems
- Easytest Online Test Platform
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized access to sensitive user data (exam results, personal information), database manipulation, or privilege escalation.
If Mitigated
Limited impact if proper input validation and parameterized queries are implemented, though some data exposure may still occur.
🎯 Exploit Status
SQL injection via qlevel parameter requires authenticated access but is straightforward to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://zuso.ai/advisory/za-2024-09
Restart Required: No
Instructions:
1. Check vendor for official patch. 2. If patch available, apply immediately. 3. Verify fix by testing qlevel parameter injection.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to restrict qlevel parameter to expected values only
WAF Rule
allDeploy web application firewall rules to block SQL injection patterns in qlevel parameter
🧯 If You Can't Patch
- Disable mock exam function entirely if not critical
- Implement strict input validation and parameterized queries for all database interactions
🔍 How to Verify
Check if Vulnerable:
Test qlevel parameter with SQL injection payloads in mock exam functionCheck Version:
Check platform version in admin panel or configuration filesVerify Fix Applied:
Attempt SQL injection via qlevel parameter and verify it's blocked or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts followed by mock exam access
- qlevel parameter with SQL keywords
Network Indicators:
- HTTP requests to mock exam endpoint with suspicious qlevel values
- Unusual database traffic patterns
SIEM Query:
source="web_logs" AND uri="/mock-exam" AND query_string="*qlevel=*" AND (query_string="*UNION*" OR query_string="*SELECT*" OR query_string="*INSERT*")