CVE-2026-28888 macOS竞态条件权限提升漏洞

#include <stdio.h> #include <unistd.h> #include <fcntl.h> // Simulated PoC for Race Condition Privilege Escalation // This is a generic example demonstrating the concept of TOCTOU. int main() { const char* sensitive_file = "/etc/sudoers"; int fd; // Step 1: Check permissions (Time of Check) if (access(sensitive_file, W_OK) == 0) { printf("[+] Write access granted. Attempting exploit...\n"); // Step 2: Time of Use (Race condition window) // In a real scenario, a race occurs here where the resource is swapped or modified. fd = open(sensitive_file, O_WRONLY); if (fd >= 0) { printf("[!] File opened successfully. Privilege escalation possible.\n"); close(fd); } else { printf("[-] Failed to open file.\n"); } } else { printf("[-] No write access.\n"); } return 0; }