To the untrained eye, it looks like a standard API endpoint. To a security professional, it represents a potential vulnerability that could lead to a full cloud environment takeover. What is 169.254.169.254?
The IP address is a link-local address used by major cloud providers (like Azure, AWS, and GCP) to host their Instance Metadata Service (IMDS) . To the untrained eye, it looks like a standard API endpoint
: Specifies that the request is looking for identity-related info. The IP address is a link-local address used
A is a way for an application to provide other applications with real-time information. When you see a "Webhook URL" field in a web application, the app is essentially saying, "Give me a URL, and I will send data to it." When you see a "Webhook URL" field in
If an attacker enters http://169.254.169 into a poorly secured webhook field, they are attempting an . They are trying to trick the cloud server into making a request to its own internal metadata service. The Attack Scenario:
: The attacker can use this token from their own laptop to log into the victim's Azure environment with the same permissions as the compromised VM. How to Protect Your Environment
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