CVE-2019-15597
📋 TL;DR
CVE-2019-15597 is a critical remote code execution vulnerability in node-df v0.1.4 where unsanitized user input allows attackers to execute arbitrary commands on affected systems. This affects any application using the vulnerable node-df package version, particularly Node.js applications that process untrusted input through this library.
💻 Affected Systems
- node-df
📦 What is this software?
Node Df by Node Df Project
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the server, allowing data theft, lateral movement, and persistent backdoor installation.
Likely Case
Remote code execution leading to application compromise, data exfiltration, and potential ransomware deployment.
If Mitigated
Limited impact with proper input validation and sandboxing, potentially only causing denial of service.
🎯 Exploit Status
Simple code injection via unsanitized input; exploit details are publicly available in HackerOne reports.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v0.1.5 and later
Vendor Advisory: https://www.npmjs.com/advisories/1559
Restart Required: Yes
Instructions:
1. Update package.json to use node-df >=0.1.5. 2. Run 'npm update node-df'. 3. Restart all Node.js applications using the library.
🔧 Temporary Workarounds
Input Validation Wrapper
allImplement strict input validation before passing data to node-df functions
// JavaScript example: Validate input contains only allowed characters
const safeInput = input.replace(/[^a-zA-Z0-9\/\-\_\.]/g, '');
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user inputs passed to node-df
- Isolate the vulnerable application in a container or VM with minimal privileges
🔍 How to Verify
Check if Vulnerable:
Check package.json or run 'npm list node-df' to see if version 0.1.4 is installedCheck Version:
npm list node-df | grep node-dfVerify Fix Applied:
Verify node-df version is 0.1.5 or higher with 'npm list node-df'📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Suspicious child process spawns from Node.js applications
Network Indicators:
- Unexpected outbound connections from Node.js processes
- Command and control traffic patterns
SIEM Query:
process.name:node AND process.args:*df* AND process.args:*;* OR process.args:*|* OR process.args:*`*