CVE-2025-52666 Revive Adserver 格式化字符串漏洞导致管理控制台拒绝服务

<?php /** * CVE-2025-52666 PoC - Revive Adserver Format String Vulnerability * This PoC demonstrates the format string injection in settings * * Note: Requires admin privileges to inject malicious settings * * Attack Vector: * 1. Attacker with admin access modifies system settings * 2. Injects format string characters (e.g., %s%s%s) into vulnerable parameter * 3. When system processes settings, format string is interpreted * 4. Fatal PHP error occurs, disabling admin console */ // Example of vulnerable code pattern (what the PoC demonstrates) $vulnerable_param = $_POST['setting_value']; // User input $format_string = "%s%s%s%s"; // Malicious format string injection // VULNERABLE: Direct use of user input in format function // $output = sprintf($format_string, $vulnerable_param); // FIXED: Proper input validation and parameterization // $safe_value = preg_replace('/[%\[\]{}()\\]/', '', $vulnerable_param); // $output = sprintf("%s", $safe_value); echo "CVE-2025-52666 Format String Injection PoC\n"; echo "Target: Revive Adserver < 5.5.2, < 6.0.1\n"; echo "Payload: Inject format string in settings parameter\n"; echo "Result: Fatal PHP error -> Admin console disabled\n"; ?>