CVE-2023-39640
📋 TL;DR
CVE-2023-39640 is a SQL injection vulnerability in UpLight cookiebanner module for PrestaShop that allows attackers to execute arbitrary SQL commands. This affects PrestaShop websites using the vulnerable cookiebanner module. Successful exploitation could lead to data theft, modification, or complete system compromise.
💻 Affected Systems
- UpLight cookiebanner module for PrestaShop
📦 What is this software?
Cookie Law by Uplight
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data exfiltration, privilege escalation, and potential remote code execution via database functions.
Likely Case
Unauthenticated attackers extracting sensitive data from the database including user credentials, payment information, and configuration secrets.
If Mitigated
Limited impact with proper input validation and database permissions restricting query execution.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized. The specific Hook::getHookModuleExecList() method appears to accept user input without proper sanitization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.1
Vendor Advisory: https://security.friendsofpresta.org/modules/2023/09/21/cookiebanner.html
Restart Required: No
Instructions:
1. Log into PrestaShop admin panel. 2. Navigate to Modules > Module Manager. 3. Search for 'cookiebanner'. 4. Click 'Upgrade' to version 1.5.1. 5. Clear PrestaShop cache from Advanced Parameters > Performance.
🔧 Temporary Workarounds
Disable cookiebanner module
allTemporarily disable the vulnerable module until patching is possible
UPDATE ps_module SET active = 0 WHERE name = 'cookiebanner'
WAF rule for SQL injection
allImplement web application firewall rules to block SQL injection patterns
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries at application level
- Restrict database user permissions to minimum required operations
🔍 How to Verify
Check if Vulnerable:
Check module version in PrestaShop admin panel under Modules > Module Manager > cookiebannerCheck Version:
SELECT version FROM ps_module WHERE name = 'cookiebanner'Verify Fix Applied:
Confirm cookiebanner module version is 1.5.1 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts from single IP
- Unexpected database queries containing UNION, SELECT, or DROP statements
Network Indicators:
- HTTP requests with SQL keywords in parameters
- Abnormal database connection patterns from web server
SIEM Query:
source="web_logs" AND ("UNION SELECT" OR "1=1" OR "' OR '1'='1") AND uri="*cookiebanner*"