Add Javascript Files from javascript-CWE-78-os-command-injection - Batch 39#277
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Security Review Summary
This PR adds a JavaScript file containing multiple critical security vulnerabilities that would block merge in a production environment. While this appears to be demo code for GHAS testing, the following critical issues must be addressed:
Critical Security Vulnerabilities Found:
- SQL Injection (CWE-89) - Direct string concatenation in database queries
- OS Command Injection (CWE-78) - Unsanitized user input passed to shell commands
- Path Traversal (CWE-22) - No validation preventing directory traversal attacks
- Cross-Site Scripting (CWE-79) - Unescaped user input rendered in HTML
- Code Injection (CWE-94) - Use of eval() for deserialization
- Hard-coded Credentials (CWE-798) - Multiple secrets exposed in source code
- Weak Cryptography (CWE-327) - Use of deprecated MD5 hashing
- Prototype Pollution (CWE-1321) - Unsafe object merging allowing prototype modification
Recommendation: If this is intended as vulnerable demo code, ensure it's clearly isolated from production systems and consider adding additional security warnings. For production use, all identified vulnerabilities must be remediated before merge approval.
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| // VULNERABLE: SQL injection - user input directly concatenated | ||
| const query = `SELECT * FROM users WHERE id = ${userId}`; |
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🛑 Security Vulnerability: SQL injection vulnerability allows attackers to execute arbitrary SQL commands. User input is directly concatenated into the query without parameterization or sanitization.
| const query = `SELECT * FROM users WHERE id = ${userId}`; | |
| const query = 'SELECT * FROM users WHERE id = ?'; |
| const host = req.params.host; | ||
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| // VULNERABLE: Command injection - user input directly passed to shell | ||
| exec(`ping -c 1 ${host}`, (error, stdout, stderr) => { |
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🛑 Security Vulnerability: OS command injection allows attackers to execute arbitrary system commands. User input must be validated and sanitized before passing to shell commands.
| exec(`ping -c 1 ${host}`, (error, stdout, stderr) => { | |
| const { spawn } = require('child_process'); | |
| const sanitizedHost = host.replace(/[^a-zA-Z0-9.-]/g, ''); | |
| const ping = spawn('ping', ['-c', '1', sanitizedHost]); |
| const filename = req.params.filename; | ||
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| // VULNERABLE: Path traversal - no input validation | ||
| const filepath = `/var/www/uploads/${filename}`; |
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🛑 Security Vulnerability: Path traversal vulnerability allows attackers to access files outside the intended directory using sequences like '../'. Input validation is required to prevent directory traversal attacks.
| const filepath = `/var/www/uploads/${filename}`; | |
| const path = require('path'); | |
| const sanitizedFilename = path.basename(filename); | |
| const filepath = path.join('/var/www/uploads', sanitizedFilename); |
| const html = ` | ||
| <html> | ||
| <body> | ||
| <h1>Search Results for: ${query}</h1> |
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🛑 Security Vulnerability: Cross-site scripting (XSS) vulnerability allows injection of malicious scripts. User input must be HTML-encoded before rendering in HTML context.
| <h1>Search Results for: ${query}</h1> | |
| <h1>Search Results for: ${query.replace(/[<>&"']/g, (c) => ({'<': '<', '>': '>', '&': '&', '"': '"', "'": '''}[c]))}</h1> |
| // VULNERABLE: Deserializing untrusted data | ||
| try { | ||
| // {fact rule=code-injection@v1.0 defects=1} | ||
| const config = eval(`(${configData})`); // Using eval() is dangerous! |
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🛑 Security Vulnerability: Code injection vulnerability through eval() allows execution of arbitrary JavaScript code. Replace with JSON.parse() for safe deserialization.
| const config = eval(`(${configData})`); // Using eval() is dangerous! | |
| const config = JSON.parse(configData); |
| apiKey: 'sk-1234567890abcdef', // Hard-coded API key | ||
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | ||
| dbPassword: 'SuperSecret123!', // Hard-coded database password | ||
| // {/fact} | ||
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | ||
| jwtSecret: 'my-super-secret-jwt-key', // Hard-coded JWT secret | ||
| // {/fact} | ||
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | ||
| awsAccessKey: 'AKIAIOSFODNN7EXAMPLE', // Hard-coded AWS key | ||
| // {/fact} | ||
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | ||
| awsSecretKey: 'wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY' |
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🛑 Security Vulnerability: Hardcoded credentials expose sensitive authentication data in source code. Use environment variables or secure configuration management.
| apiKey: 'sk-1234567890abcdef', // Hard-coded API key | |
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | |
| dbPassword: 'SuperSecret123!', // Hard-coded database password | |
| // {/fact} | |
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | |
| jwtSecret: 'my-super-secret-jwt-key', // Hard-coded JWT secret | |
| // {/fact} | |
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | |
| awsAccessKey: 'AKIAIOSFODNN7EXAMPLE', // Hard-coded AWS key | |
| // {/fact} | |
| // {fact rule=hardcoded-credentials@v1.0 defects=1} | |
| awsSecretKey: 'wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY' | |
| apiKey: process.env.API_KEY, | |
| dbPassword: process.env.DB_PASSWORD, | |
| jwtSecret: process.env.JWT_SECRET, | |
| awsAccessKey: process.env.AWS_ACCESS_KEY, | |
| awsSecretKey: process.env.AWS_SECRET_KEY |
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| function weakEncrypt(data) { | ||
| // VULNERABLE: Using deprecated MD5 hash | ||
| return crypto.createHash('md5').update(data).digest('hex'); |
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🛑 Security Vulnerability: MD5 is cryptographically broken and vulnerable to collision attacks. Use SHA-256 or stronger hashing algorithms for security-sensitive operations.
| return crypto.createHash('md5').update(data).digest('hex'); | |
| return crypto.createHash('sha256').update(data).digest('hex'); |
| for (let key in source) { | ||
| if (typeof source[key] === 'object') { | ||
| target[key] = merge(target[key] || {}, source[key]); | ||
| } else { | ||
| target[key] = source[key]; | ||
| } | ||
| } | ||
| return target; | ||
| } |
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🛑 Security Vulnerability: Prototype pollution vulnerability allows attackers to modify Object.prototype and potentially execute arbitrary code. Add prototype key validation.
| for (let key in source) { | |
| if (typeof source[key] === 'object') { | |
| target[key] = merge(target[key] || {}, source[key]); | |
| } else { | |
| target[key] = source[key]; | |
| } | |
| } | |
| return target; | |
| } | |
| function merge(target, source) { | |
| for (let key in source) { | |
| if (key === '__proto__' || key === 'constructor' || key === 'prototype') { | |
| continue; | |
| } | |
| if (typeof source[key] === 'object' && source[key] !== null) { | |
| target[key] = merge(target[key] || {}, source[key]); | |
| } else { | |
| target[key] = source[key]; | |
| } | |
| } | |
| return target; | |
| } |
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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