The URL http://169.254.169.254/metadata/identity/oauth2/token is a specific endpoint for the . It allows applications running on Azure Virtual Machines (VMs) to retrieve OAuth 2.0 access tokens without needing to store hardcoded credentials.
The IP address 169.254.169.254 is a non-routable link-local address used by major cloud providers like , AWS , and GCP to host their Instance Metadata Service (IMDS) . Azure Instance Metadata Service (IMDS) The URL http://169
Developers use this endpoint to grant a VM access to other Azure services (like Key Vault or SQL Database) using . Managed Identities Developers use this endpoint to grant
Have you seen similar obfuscated metadata requests in your environment? Let us know in the comments below. This string refers to a Server-Side Request Forgery
This string refers to a Server-Side Request Forgery ( ) vulnerability, where an attacker attempts to trick an application into making a request to an internal cloud metadata service. 1. Decoding the URL The string
: Explicitly block requests to Link-Local addresses (like 169.254.169.254 ) and private IP ranges (RFC 1918).