Curl-url-http-3a-2f-2f169.254.169.254-2flatest-2fapi-2ftoken [updated]

The seemingly cryptic string curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken is not random noise. It is a dangerous query, encapsulating years of cloud security evolution and attacker ingenuity.

With these three strings, an attacker can impersonate your EC2 instance from anywhere in the world. curl-url-http-3A-2F-2F169.254.169.254-2Flatest-2Fapi-2Ftoken

In the original Instance Metadata Service (IMDSv1), an EC2 instance could fetch its metadata—including highly sensitive IAM role credentials—using a simple, stateless HTTP GET request: curl http://169.254.169 Use code with caution. The seemingly cryptic string curl-url-http-3A-2F-2F169

(not needed, but for hybrid environments). &2 exit 1 fi

if [ -z "$METADATA_TOKEN" ]; then echo "Failed to obtain IMDSv2 token" >&2 exit 1 fi