CVE-2025-68957 华为设备卡框架模块多线程竞态条件漏洞

// CVE-2025-68957 PoC - Race Condition in Card Framework Module // This PoC demonstrates the race condition vulnerability in Huawei device card framework // Note: This is for educational and testing purposes only #include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #define NUM_THREADS 50 #define ITERATIONS 1000 volatile int shared_counter = 0; volatile int trigger_race = 1; void* card_framework_access(void* arg) { int thread_id = *(int*)arg; for (int i = 0; i < ITERATIONS; i++) { // Simulate race condition in card framework module // Without proper locking, this creates a TOCTOU vulnerability int old_value = shared_counter; // Small delay to increase chance of race condition if (trigger_race) { usleep(1); } shared_counter = old_value + 1; // Additional operations that may trigger the vulnerability if (i % 100 == 0) { printf("Thread %d: iteration %d, counter = %d\n", thread_id, i, shared_counter); } } return NULL; } int main() { pthread_t threads[NUM_THREADS]; int thread_ids[NUM_THREADS]; printf("CVE-2025-68957 PoC - Multi-thread Race Condition in Card Framework\n"); printf("Starting %d threads with %d iterations each...\n", NUM_THREADS, ITERATIONS); // Create multiple threads to trigger race condition for (int i = 0; i < NUM_THREADS; i++) { thread_ids[i] = i; if (pthread_create(&threads[i], NULL, card_framework_access, &thread_ids[i]) != 0) { perror("pthread_create failed"); return 1; } } // Wait for all threads to complete for (int i = 0; i < NUM_THREADS; i++) { pthread_join(threads[i], NULL); } int expected = NUM_THREADS * ITERATIONS; printf("\nExpected counter value: %d\n", expected); printf("Actual counter value: %d\n", shared_counter); printf("Race condition detected: %s\n", (shared_counter != expected) ? "YES - Vulnerability confirmed!" : "NO"); return 0; }