CVE-2025-33200: NVIDIA DGX Spark GB10 SROOT固件资源重用漏洞

// CVE-2025-33200 PoC - Resource Reuse in NVIDIA DGX Spark GB10 SROOT Firmware // Note: This is a conceptual PoC demonstrating the resource reuse vulnerability // Actual exploitation requires local access and high privileges #include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated SROOT firmware resource structure typedef struct { unsigned char session_key[32]; unsigned char nonce[16]; void *buffer_ptr; size_t buffer_size; int is_initialized; } SROOT_Resource; // Vulnerable function - resource reuse without proper cleanup void vulnerable_resource_operation(SROOT_Resource *res, unsigned char *data, size_t len) { // First use - resource allocated and used res->buffer_ptr = malloc(len); res->buffer_size = len; res->is_initialized = 1; memcpy(res->buffer_ptr, data, len); // Process data... printf("[+] Resource used for initial operation\n"); // VULNERABILITY: Resource reused without proper cleanup // The buffer still contains old data from previous operation printf("[+] Checking residual data in reused resource...\n"); // Second use - same resource used without clearing old data if (res->is_initialized) { // Old sensitive data might still be present printf("[!] Potential information disclosure via resource reuse\n"); printf("[!] Residual data detected in buffer\n"); // Attacker could extract sensitive information from residual data // This could include: session keys, encryption material, credentials } } // Secure version - proper resource cleanup void secure_resource_operation(SROOT_Resource *res, unsigned char *data, size_t len) { // Clear resource before reuse if (res->buffer_ptr != NULL) { memset(res->buffer_ptr, 0, res->buffer_size); free(res->buffer_ptr); res->buffer_ptr = NULL; } // Reinitialize res->buffer_ptr = malloc(len); res->buffer_size = len; memset(res->buffer_ptr, 0, len); // Initialize to zero memcpy(res->buffer_ptr, data, len); printf("[+] Secure: Resource properly cleared before reuse\n"); } int main() { printf("CVE-2025-33200 PoC - NVIDIA DGX Spark GB10 SROOT Resource Reuse\n"); printf("CVSS: 2.3 (AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N)\n\n"); // Simulated attack scenario SROOT_Resource res = {0}; unsigned char sensitive_data[] = "CONFIDENTIAL_KEY_DATA"; unsigned char attacker_data[] = "ATTACKER_DATA"; // Step 1: Normal operation with sensitive data printf("[*] Simulating normal SROOT firmware operation...\n"); vulnerable_resource_operation(&res, sensitive_data, strlen(sensitive_data)); // Step 2: Trigger resource reuse (vulnerable behavior) printf("\n[*] Triggering resource reuse vulnerability...\n"); vulnerable_resource_operation(&res, attacker_data, strlen(attacker_data)); // Cleanup if (res.buffer_ptr) { free(res.buffer_ptr); } return 0; }