CVE-2023-4188
📋 TL;DR
This CVE describes a SQL injection vulnerability in the instantsoft/icms2 content management system. Attackers can inject malicious SQL queries through user inputs, potentially accessing or manipulating the database. All users running icms2 versions prior to 2.16.1-git are affected.
💻 Affected Systems
- instantsoft/icms2
📦 What is this software?
Instantcms by Instantcms
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data manipulation, or deletion, potentially leading to full system takeover if database privileges allow.
Likely Case
Unauthorized data access, extraction of sensitive information like user credentials, personal data, or configuration details.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only allowing data viewing without modification.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited and tools exist for automated exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.16.1-git and later
Vendor Advisory: https://github.com/instantsoft/icms2/commit/1dbc3e6c8fbf5d2dc551cb27fad0de3584dee40f
Restart Required: No
Instructions:
1. Backup your database and application files. 2. Update to version 2.16.1-git or later via git pull or manual update. 3. Verify the fix by checking the commit hash includes 1dbc3e6c8fbf5d2dc551cb27fad0de3584dee40f.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation and parameterized queries for all user inputs.
Web Application Firewall
allDeploy a WAF with SQL injection protection rules.
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from sensitive data.
- Enable detailed logging and monitoring for SQL injection attempts and unusual database queries.
🔍 How to Verify
Check if Vulnerable:
Check your icms2 version. If it's earlier than 2.16.1-git, you are vulnerable.Check Version:
Check the version in your icms2 installation files or use git log to verify commits.Verify Fix Applied:
Verify your installation includes commit 1dbc3e6c8fbf5d2dc551cb27fad0de3584dee40f and is version 2.16.1-git or later.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in application logs
- Multiple failed login attempts with SQL-like patterns
- Database error messages containing user input
Network Indicators:
- HTTP requests with SQL keywords in parameters
- Unusual database connection patterns
SIEM Query:
search 'SQL syntax' OR 'SQL error' OR 'UNION SELECT' in web application logs