Add Javascript Files from javascript-CWE-78-os-command-injection - Batch 45#283
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Security Review Summary
This PR introduces multiple critical security vulnerabilities that must be addressed before merge:
🚨 Critical Issues (Must Fix)
- OS Command Injection (CWE-78) - User input passed directly to
spawn()without validation - Hardcoded Credentials (CWE-798) - Database and Twilio credentials exposed in source code
- Information Exposure (CWE-200) - OTP sent to client-side HTML, bypassing authentication
🔧 Required Changes
- Replace all hardcoded credentials with environment variables
- Implement proper input validation and sanitization for the
/sendDataendpoint - Store OTP server-side with session management and expiration
- Remove unused imports
⚠️ Security Impact
The current implementation allows:
- Arbitrary command execution on the server
- Credential theft from source code
- Authentication bypass via client-side OTP exposure
Recommendation: Do not merge until all security vulnerabilities are resolved. Consider implementing additional security measures like rate limiting, CSRF protection, and input validation middleware.
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| const connection = mysql.createConnection({ | ||
| host: 'localhost', | ||
| user: 'root', | ||
| password: 'root', | ||
| database: 'sih', | ||
| }); |
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🛑 Security Vulnerability: Hardcoded database credentials expose sensitive authentication information. Replace with environment variables to prevent credential exposure in source code1.
| const connection = mysql.createConnection({ | |
| host: 'localhost', | |
| user: 'root', | |
| password: 'root', | |
| database: 'sih', | |
| }); | |
| const connection = mysql.createConnection({ | |
| host: process.env.DB_HOST || 'localhost', | |
| user: process.env.DB_USER, | |
| password: process.env.DB_PASSWORD, | |
| database: process.env.DB_NAME, | |
| }); |
Footnotes
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CWE-798: Use of Hard-coded Credentials - https://cwe.mitre.org/data/definitions/798.html ↩
| const accountSid = ''; | ||
| console.log('Connected to MySQL database'); | ||
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | ||
| const authToken = 'b52949ed09d4bcded21f79399af4872e'; |
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🛑 Security Vulnerability: Hardcoded Twilio auth token exposes API credentials. Replace with environment variable to prevent unauthorized access to Twilio services1.
| const authToken = 'b52949ed09d4bcded21f79399af4872e'; | |
| const authToken = process.env.TWILIO_AUTH_TOKEN; |
Footnotes
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CWE-798: Use of Hard-coded Credentials - https://cwe.mitre.org/data/definitions/798.html ↩
| } | ||
| console.log('Connected to MySQL database'); | ||
| }); | ||
| const accountSid = ''; |
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🛑 Security Vulnerability: Empty accountSid will cause Twilio authentication to fail. Replace with environment variable to properly configure Twilio credentials1.
| const accountSid = ''; | |
| const accountSid = process.env.TWILIO_ACCOUNT_SID; |
Footnotes
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CWE-798: Use of Hard-coded Credentials - https://cwe.mitre.org/data/definitions/798.html ↩
| console.log('Data received from client:', receivedData); | ||
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| // Create a child process to run the Python script | ||
| const pythonProcess = spawn('python', ['test.py', receivedData]); |
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🛑 Security Vulnerability: OS command injection vulnerability allows arbitrary command execution. User input is passed directly to spawn() without validation or sanitization1.
| const pythonProcess = spawn('python', ['test.py', receivedData]); | |
| // Validate and sanitize input before passing to child process | |
| if (!receivedData || typeof receivedData !== 'string') { | |
| return res.status(400).json({ error: 'Invalid input data' }); | |
| } | |
| // Whitelist allowed characters or use a safer approach | |
| const sanitizedData = receivedData.replace(/[;&|`$(){}[\]\\]/g, ''); | |
| const pythonProcess = spawn('python', ['test.py'], { | |
| stdio: ['pipe', 'pipe', 'pipe'] | |
| }); | |
| // Send data via stdin instead of command line arguments | |
| pythonProcess.stdin.write(sanitizedData); | |
| pythonProcess.stdin.end(); |
Footnotes
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CWE-78: OS Command Injection - https://cwe.mitre.org/data/definitions/78.html ↩
| const twilioNumber = '+12564458165'; | ||
| const myPhoneNumber = '+919391782577'; |
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Hardcoded phone numbers should be moved to environment variables to avoid exposing personal information and improve configuration flexibility.
| const twilioNumber = '+12564458165'; | |
| const myPhoneNumber = '+919391782577'; | |
| const twilioNumber = process.env.TWILIO_PHONE_NUMBER; | |
| const myPhoneNumber = process.env.MY_PHONE_NUMBER; |
| <input type="text" id="otp" name="otp" required> | ||
| </div> | ||
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| <input type="hidden" name="generatedOTP" value="${generatedOTP}"> |
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🛑 Security Vulnerability: OTP exposed in client-side HTML allows users to view the correct OTP in browser developer tools, completely bypassing authentication1.
| <input type="hidden" name="generatedOTP" value="${generatedOTP}"> | |
| <input type="hidden" name="otpTimestamp" value="${Date.now()}"> |
Footnotes
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CWE-200: Information Exposure - https://cwe.mitre.org/data/definitions/200.html ↩
| const receivedOTP = parseInt(req.body.otp); // Parse receivedOTP as an integer | ||
| const correctOTP = parseInt(req.body.generatedOTP); // Parse correctOTP as an integer |
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OTP verification logic needs to be updated to use server-side session storage instead of client-side hidden input to prevent tampering.
| const receivedOTP = parseInt(req.body.otp); // Parse receivedOTP as an integer | |
| const correctOTP = parseInt(req.body.generatedOTP); // Parse correctOTP as an integer | |
| const receivedOTP = parseInt(req.body.otp); | |
| // Retrieve OTP from server-side session instead of client input | |
| const correctOTP = req.session.generatedOTP; | |
| const otpTimestamp = req.session.otpTimestamp; | |
| // Check OTP expiration (e.g., 5 minutes) | |
| if (!correctOTP || !otpTimestamp || Date.now() - otpTimestamp > 300000) { | |
| return res.status(400).sendFile(__dirname + '/error.html'); | |
| } |
| const app = express(); | ||
| const port = 5000; | ||
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| const { exec } = require('child_process'); |
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Remove unused import. The exec function is imported but never used in the code.
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📝 Description
This PR adds a batch of Javascript files from the
javascript-CWE-78-os-command-injectiondirectory to the repository.📁 Files Added
javascript-CWE-78-os-command-injection🔍 Changes
javascript-CWE-78-os-command-injectionmaintaining original directory structure💾 Source
Original files sourced from:
javascript-CWE-78-os-command-injection