Request-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f Jun 2026

The attacker uses these credentials from their own machine to access AWS services, posing as the instance. How to Protect Your AWS Environment

The portal's address was a cryptic string of characters: http://169.254.169.254/latest/meta-data/iam/security-credentials/ . Alex had to decipher the meaning behind this mysterious URL.

Whether you saw this in a log, an alert, or a code snippet, treat it as a potential red flag. Defending against SSRF and securing IMDS (especially by adopting IMDSv2) is no longer optional — it’s a fundamental cloud security best practice. The attacker uses these credentials from their own

"Code" : "Success", "LastUpdated" : "2025-01-01T12:00:00Z", "Type" : "AWS-HMAC", "AccessKeyId" : "ASIA...", "SecretAccessKey" : "...", "Token" : "...", "Expiration" : "2025-01-01T18:00:00Z"

: If an IAM Role is attached to the instance, this endpoint lists the name of that role. Whether you saw this in a log, an

This endpoint is a primary target for attackers executing Server-Side Request Forgery (SSRF) attacks. If successful, it allows unauthorized users to extract temporary AWS access keys, potentially compromising an entire cloud infrastructure. Understanding the Target: The Link-Local Address

Understanding the Risks of http://169.254.169 In the world of AWS cloud security, few URIs are as critical—and potentially dangerous—as http://169.254.169 . This specific endpoint is part of the EC2 Instance Metadata Service (IMDS), a powerful feature that allows running instances to retrieve configuration data without needing hardcoded credentials. This endpoint is a primary target for attackers

request-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fmeta data-2Fiam-2Fsecurity credentials-2F