The following code is for security research and authorized testing only.
python
import os
import sys
# Proof of Concept (Conceptual) for CVE-2026-40381
# This script simulates checking for write access in the Agent directory.
# Actual exploitation would involve placing a malicious payload.
def check_vulnerability():
# Common installation path for Azure Connected Machine Agent
agent_path = "C:\Program Files\AzureConnectedMachineAgent"
print(f"[*] Checking path: {agent_path}")
if not os.path.exists(agent_path):
print("[-] Target directory not found. System may not be vulnerable.")
return
# Check if current user has write permissions (Simulation of access control flaw)
test_file = os.path.join(agent_path, "poc_test.txt")
try:
with open(test_file, 'w') as f:
f.write("Vulnerability Test")
print("[+] SUCCESS: Write access confirmed!")
print("[+] An attacker could replace a DLL or config file here to escalate privileges.")
# Clean up
os.remove(test_file)
except PermissionError:
print("[-] FAILED: No write access. System appears patched.")
except Exception as e:
print(f"[-] Error: {e}")
if __name__ == "__main__":
check_vulnerability()