Webhook-url-http-3a-2f-2f169.254.169.254-2fmetadata-2fidentity-2foauth2-2ftoken Fixed Jun 2026
Since it's a local endpoint, applications running on the VM do not need complex configuration to fetch tokens.
Here is an analysis and explanation of the content, decoding the structure and explaining the security implications. Since it's a local endpoint, applications running on
Instead of generating a standard blog post about that string, I have generated a explaining exactly what this URL does, why attackers use it, and how to defend against it. # Resolve hostname to IPs (watch for DNS
# Resolve hostname to IPs (watch for DNS rebinding) try: import socket ip_list = socket.getaddrinfo(hostname, None, socket.AF_UNSPEC, socket.SOCK_STREAM) for addr in ip_list: ip = ipaddress.ip_address(addr[4][0]) if ip.is_private or ip.is_loopback or ip.is_link_local: return False except socket.gaierror: return False Since it's a local endpoint
The tokens retrieved are managed and automatically rotated by the Azure platform. How to Use the Webhook (Example)
http://169.254.169.254/metadata/identity/oauth2/token
Cipher doesn’t give Leo a link to a website. Instead, Cipher provides the encoded version of your URL: http://169.254.169