CVE-2019-10766
📋 TL;DR
This SQL injection vulnerability in Pixie's limit() function allows attackers to execute arbitrary SQL commands on affected databases. It affects all applications using vulnerable Pixie versions for database operations. Attackers can potentially read, modify, or delete database contents.
💻 Affected Systems
- Pixie PHP Database Library
📦 What is this software?
Pixie by Pixie Project
Pixie by Pixie Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, and potential remote code execution if database functions allow it.
Likely Case
Data exfiltration, data manipulation, and potential privilege escalation through database access.
If Mitigated
Limited impact with proper input validation and database permissions restricting query execution.
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited and tooling exists for automated exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.3 for 1.0.x, 2.0.2 for 2.0.x
Vendor Advisory: https://github.com/usmanhalalit/pixie
Restart Required: No
Instructions:
1. Update Pixie via Composer: composer update usmanhalalit/pixie
2. Verify version is 1.0.3+ or 2.0.2+
3. Test database functionality
🔧 Temporary Workarounds
Input Validation Wrapper
allImplement custom input validation for all limit() parameters before passing to Pixie
🧯 If You Can't Patch
- Implement strict input validation for all user inputs passed to limit() function
- Apply database permissions limiting to SELECT-only for application accounts
🔍 How to Verify
Check if Vulnerable:
Check composer.json or vendor/usmanhalalit/pixie for version <1.0.3 (1.0.x) or <2.0.2 (2.0.x)Check Version:
composer show usmanhalalit/pixie | grep versionVerify Fix Applied:
Verify Pixie version is 1.0.3+ or 2.0.2+ and test limit() function with malicious inputs📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries with unexpected LIMIT clauses
- Multiple failed login attempts with SQL-like syntax
Network Indicators:
- SQL error messages in HTTP responses
- Unusual database query patterns
SIEM Query:
SELECT * FROM web_logs WHERE uri CONTAINS 'LIMIT' AND (uri CONTAINS 'UNION' OR uri CONTAINS 'SELECT' OR uri CONTAINS '--')