CVE-2020-15362
📋 TL;DR
CVE-2020-15362 is a critical code injection vulnerability in thingsSDK WiFi Scanner 1.0.1 that allows attackers to execute arbitrary commands by manipulating executable paths and arguments. This affects any application using the vulnerable wifiscanner.js library. Attackers can achieve remote code execution with high privileges.
💻 Affected Systems
- thingsSDK WiFi Scanner
📦 What is this software?
Wifiscanner by Thingssdk
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining root/admin privileges, installing persistent backdoors, stealing sensitive data, and pivoting to other systems.
Likely Case
Remote code execution leading to data exfiltration, cryptocurrency mining, or ransomware deployment on affected systems.
If Mitigated
Limited impact with proper input validation, sandboxing, and least privilege execution preventing successful exploitation.
🎯 Exploit Status
Exploitation is straightforward as it involves simple command injection through parameter manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.2 or later
Vendor Advisory: https://github.com/thingsSDK/wifiscanner/issues/1
Restart Required: No
Instructions:
1. Update wifiscanner.js to version 1.0.2 or later. 2. Run 'npm update wifiscanner' in your project directory. 3. Verify the update with 'npm list wifiscanner'.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict validation of all user inputs passed to wifiscanner.js functions
Restrict Executable Paths
allHardcode executable paths and disable ability to override them via options
🧯 If You Can't Patch
- Isolate affected systems in network segments with strict egress filtering
- Implement application allowlisting to prevent execution of unauthorized binaries
🔍 How to Verify
Check if Vulnerable:
Check package.json for wifiscanner version 1.0.1 or examine node_modules/wifiscanner/package.jsonCheck Version:
npm list wifiscanner | grep wifiscannerVerify Fix Applied:
Confirm wifiscanner version is 1.0.2 or later using 'npm list wifiscanner'📡 Detection & Monitoring
Log Indicators:
- Unusual process executions from Node.js applications
- Suspicious command-line arguments in system logs
- Unexpected network connections from Node.js processes
Network Indicators:
- Outbound connections to suspicious IPs from Node.js applications
- DNS queries for command-and-control domains
SIEM Query:
process.name:node AND (process.cmd_line:*wifiscanner* OR process.cmd_line:*injection*)