CVE-2021-47902
📋 TL;DR
CVE-2021-47902 is a SQL injection vulnerability in Testa Online Test Management System that allows attackers to inject malicious SQL code through the 'q' search parameter. This enables unauthorized database access, potentially exposing sensitive user data and system information. Organizations using Testa Online Test Management System version 3.4.7 are affected.
💻 Affected Systems
- Testa Online Test Management System
⚠️ 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 leading to data theft, privilege escalation, and potential system takeover
Likely Case
Extraction of sensitive user data, test results, and system configuration information
If Mitigated
Limited data exposure with proper input validation and WAF protection
🎯 Exploit Status
Exploit code available on Exploit-DB, requires no authentication
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://web.archive.org/web/20220406031253/https://testa.cc/
Restart Required: No
Instructions:
No official patch available. Consider upgrading to newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize the 'q' parameter
Implement parameterized queries or prepared statements in application code
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns
Add WAF rule: deny requests containing SQL keywords in 'q' parameter
🧯 If You Can't Patch
- Implement network segmentation to isolate the Testa system from sensitive databases
- Deploy database monitoring to detect unusual query patterns
🔍 How to Verify
Check if Vulnerable:
Test search functionality with SQL injection payloads like ' OR '1'='1Check Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
Verify that SQL injection payloads no longer return database information📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Multiple failed login attempts after search queries
Network Indicators:
- HTTP requests with SQL keywords in 'q' parameter
- Unusual database query patterns
SIEM Query:
source="web_logs" AND (q CONTAINS "UNION" OR q CONTAINS "SELECT" OR q CONTAINS "OR '1'='1")