CVE-2023-23634
📋 TL;DR
This SQL injection vulnerability in Documize version 5.4.2 allows remote attackers to execute arbitrary SQL commands via the user parameter in the /api/dashboard/activity endpoint. Attackers can potentially read, modify, or delete database contents, and in some configurations execute arbitrary code. All organizations running vulnerable Documize instances are affected.
💻 Affected Systems
- Documize
📦 What is this software?
Documize by Documize
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including data exfiltration, privilege escalation to admin, and remote code execution leading to full control of the server.
Likely Case
Database compromise allowing data theft, modification of user accounts, and potential lateral movement within the network.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation preventing database access.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited. The specific endpoint requires authentication, but once authenticated, exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.4.3 or later
Vendor Advisory: https://herolab.usd.de/en/security-advisories/usd-2022-0066/
Restart Required: Yes
Instructions:
1. Backup your Documize instance and database. 2. Download and install Documize version 5.4.3 or later from the official repository. 3. Restart the Documize service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation to sanitize the user parameter before processing
Not applicable - requires code modification
WAF Rule
allDeploy web application firewall rules to block SQL injection patterns
ModSecurity rule: SecRule ARGS:user "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the Documize instance from critical systems
- Deploy a web application firewall with SQL injection detection rules
🔍 How to Verify
Check if Vulnerable:
Check if your Documize instance is version 5.4.2 by accessing the admin panel or checking the application filesCheck Version:
Check the Documize admin interface or examine the package.json file in the installation directoryVerify Fix Applied:
Verify the version is 5.4.3 or later and test the /api/dashboard/activity endpoint with SQL injection payloads📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed authentication attempts followed by SQL-like patterns in access logs
- Unexpected database errors in application logs
Network Indicators:
- SQL keywords in HTTP requests to /api/dashboard/activity
- Unusual database connections from the application server
SIEM Query:
source="documize_access.log" AND uri="/api/dashboard/activity" AND (user="*' OR *" OR user="*;*" OR user="*--*" OR user="*UNION*" OR user="*SELECT*" OR user="*INSERT*" OR user="*UPDATE*" OR user="*DELETE*")