CVE-2023-30189
📋 TL;DR
This vulnerability allows attackers to execute arbitrary SQL commands on PrestaShop websites using the posstaticblocks module version 1.0.0 or earlier. Attackers can potentially steal sensitive data, modify database content, or gain administrative access. All PrestaShop installations with the vulnerable module are affected.
💻 Affected Systems
- PrestaShop posstaticblocks module
📦 What is this software?
Posstaticblocks by Posthemes
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, website defacement, backdoor installation, and full administrative control of the PrestaShop instance.
Likely Case
Data exfiltration of customer information, order details, and administrative credentials, potentially leading to further system compromise.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data reading from specific tables.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited with automated tools. The public advisory includes technical details that facilitate exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1
Vendor Advisory: https://friends-of-presta.github.io/security-advisories/modules/2023/04/27/posstaticblocks.html
Restart Required: No
Instructions:
1. Log into PrestaShop admin panel. 2. Navigate to Modules > Module Manager. 3. Search for 'posstaticblocks'. 4. Click 'Upgrade' to version 1.0.1 or later. 5. Alternatively, download the patched version from the PrestaShop Addons marketplace and manually install it.
🔧 Temporary Workarounds
Disable the module
allTemporarily disable the vulnerable posstaticblocks module until patching is possible.
Log into PrestaShop admin > Modules > Module Manager > Search 'posstaticblocks' > Click 'Disable'
Remove the module
allCompletely uninstall the vulnerable module if not required for functionality.
Log into PrestaShop admin > Modules > Module Manager > Search 'posstaticblocks' > Click 'Uninstall'
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with SQL injection protection rules
- Restrict database user permissions to minimum required for the module's functionality
🔍 How to Verify
Check if Vulnerable:
Check the module version in PrestaShop admin panel: Modules > Module Manager > Search 'posstaticblocks' > Check version number. If version is 1.0.0 or lower, you are vulnerable.Check Version:
No direct command-line command; must check through PrestaShop admin interface or examine /modules/posstaticblocks/posstaticblocks.php file version metadata.Verify Fix Applied:
After updating, verify the module shows version 1.0.1 or higher in the module manager. Test the affected functionality (posstaticblocks::getPosCurrentHook()) to ensure it no longer accepts malicious input.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts from single IP
- Requests to posstaticblocks endpoints with SQL syntax in parameters
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) in URL parameters or POST data
- Unusual traffic patterns to module-specific endpoints
SIEM Query:
web.url:*posstaticblocks* AND (web.param:*SELECT* OR web.param:*UNION* OR web.param:*OR 1=1*)