CVE-2023-38190
📋 TL;DR
SuperWebMailer 9.00.0.01710 contains a SQL injection vulnerability in the size parameter during export operations. This allows attackers to execute arbitrary SQL commands on the database. Organizations using this specific version of SuperWebMailer are affected.
💻 Affected Systems
- SuperWebMailer
📦 What is this software?
Superwebmailer by Superwebmailer
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data manipulation, or remote code execution if database functions allow it.
Likely Case
Data exfiltration from the database, potentially including sensitive email data, user credentials, or configuration information.
If Mitigated
Limited impact with proper input validation and database permissions restricting unauthorized queries.
🎯 Exploit Status
SQL injection vulnerabilities are typically easy to exploit with basic web security testing tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor for updated version
Vendor Advisory: https://herolab.usd.de/security-advisories/usd-2023-0014/
Restart Required: Yes
Instructions:
1. Check vendor website for updated version. 2. Backup current installation. 3. Apply patch or upgrade to fixed version. 4. Restart SuperWebMailer service.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to sanitize the size parameter before processing.
Implement parameterized queries or input sanitization in export functionality
Web Application Firewall
allDeploy WAF rules to block SQL injection patterns in the size parameter.
Configure WAF to detect and block SQL injection attempts in POST/GET parameters
🧯 If You Can't Patch
- Restrict network access to SuperWebMailer to trusted IPs only
- Implement database user with minimal necessary permissions
🔍 How to Verify
Check if Vulnerable:
Check if SuperWebMailer version is 9.00.0.01710 via admin interface or installation directory.Check Version:
Check SuperWebMailer admin panel or installation directory for version informationVerify Fix Applied:
Verify version has been updated beyond 9.00.0.01710 and test export functionality with SQL injection test payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple export requests with malformed size parameters
- Error logs showing SQL syntax errors
Network Indicators:
- HTTP requests to export endpoints containing SQL keywords in size parameter
- Unusual database connection patterns from web server
SIEM Query:
source="web_logs" AND (uri="*export*" AND param="*size=*SELECT*" OR param="*size=*UNION*")