CVE-2026-28897 Apple内核缓冲区溢出漏洞

#include <stdio.h> #include <string.h> #include <stdlib.h> /* * Conceptual Proof of Concept (PoC) for CVE-2026-28897 * This C code simulates a kernel buffer overflow scenario. * Compile: gcc -o poc_exploit poc_exploit.c * Usage: ./poc_exploit <payload_string> */ void simulate_vulnerable_kernel_copy(char *user_input) { // Simulate a fixed-size kernel buffer char kernel_buffer[64]; // VULNERABILITY: The code copies user input into the kernel buffer // without checking if the input size exceeds the buffer capacity. // This mimics the lack of input validation mentioned in the CVE description. strcpy(kernel_buffer, user_input); printf("[Kernel] Data processed: %s\n", kernel_buffer); } int main(int argc, char *argv[]) { if (argc < 2) { printf("Usage: %s <payload>\n", argv[0]); printf("Example: %s AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n", argv[0]); return 1; } char *malicious_payload = argv[1]; printf("[PoC] Attempting to trigger buffer overflow...\n"); // Trigger the vulnerable function simulate_vulnerable_kernel_copy(malicious_payload); printf("[PoC] Execution completed. If the payload was too long, a crash may have occurred.\n"); return 0; }