CVE-2023-3820
📋 TL;DR
CVE-2023-3820 is an SQL injection vulnerability in Pimcore's data object grid feature that allows attackers to execute arbitrary SQL commands. This affects all Pimcore installations prior to version 10.6.4. Attackers could potentially read, modify, or delete database content depending on their access level.
💻 Affected Systems
- Pimcore
📦 What is this software?
Pimcore by Pimcore
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, data manipulation, or deletion of critical business data. Could lead to full system takeover if combined with other vulnerabilities.
Likely Case
Unauthorized data access and potential data manipulation in affected Pimcore instances. Attackers could extract sensitive information or modify application data.
If Mitigated
Limited impact with proper input validation and database permissions. SQL injection attempts would be blocked or contained to non-sensitive data.
🎯 Exploit Status
Exploitation requires authenticated access to Pimcore. The vulnerability is in the data object grid functionality where user input is not properly sanitized before being used in SQL queries.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.6.4
Vendor Advisory: https://github.com/pimcore/pimcore/commit/e641968979d4a2377bbea5e2a76bdede040d0b97
Restart Required: No
Instructions:
1. Update Pimcore to version 10.6.4 or later. 2. Run composer update if using Composer. 3. Clear application cache. 4. Verify the fix by checking the version.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for data object grid parameters to filter SQL injection attempts
Implement parameterized queries or prepared statements for all data object grid operations
Database Permission Restriction
allRestrict database user permissions to limit potential damage from SQL injection
REVOKE DELETE, DROP, ALTER FROM pimcore_user@localhost;
GRANT SELECT, INSERT, UPDATE ON specific_tables TO pimcore_user@localhost;
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block SQL injection patterns in data object grid requests
- Disable or restrict access to the vulnerable data object grid feature until patching is possible
🔍 How to Verify
Check if Vulnerable:
Check Pimcore version: if version is less than 10.6.4, the system is vulnerable. Review application logs for SQL error messages related to data object grid operations.Check Version:
php bin/console pimcore:versionVerify Fix Applied:
Verify Pimcore version is 10.6.4 or higher. Test data object grid functionality to ensure it works without SQL errors.📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in application logs
- Unusual database queries from Pimcore application
- Multiple failed login attempts followed by data object grid access
Network Indicators:
- Unusual SQL query patterns in database traffic
- HTTP requests with SQL injection payloads in data object grid parameters
SIEM Query:
source="pimcore.logs" AND ("SQL syntax" OR "You have an error in your SQL syntax" OR "data object grid" AND error)