AWS SDKs use this exact pathway automatically to sign API requests without requiring developers to hardcode keys into their software. The Security Threat: SSRF Vulnerabilities
In this case, the attack was observed and ultimately prevented because the targeted environment was using IMDSv2, which blocked the attacker's attempt to retrieve the credentials. However, in environments still using IMDSv1, this exploit would have resulted in a full compromise of the EC2 instance's IAM credentials. This incident demonstrates that attackers are continuously searching for and exploiting new SSRF vulnerabilities in common applications running on EC2. AWS SDKs use this exact pathway automatically to
Have you encountered this metadata endpoint in an unexpected place? Share your experience — and check your WAF logs today. Applications that must fetch remote resources should never
Applications that must fetch remote resources should never accept arbitrary URLs from users. Implement a strict of approved domains. launch or terminate instances
The base URL for the latest metadata is http://169.254.169.254/latest/meta-data/ . 2. The Role of .../iam/security-credentials/
These credentials are the keys to the kingdom. An attacker who successfully exfiltrates them can use them to authenticate to AWS APIs with the same permissions as the EC2 instance's IAM role. This can allow them to access S3 buckets, launch or terminate instances, create backdoors, and perform a wide range of malicious actions, effectively granting them control over the AWS environment.
AWS SDKs use this exact pathway automatically to sign API requests without requiring developers to hardcode keys into their software. The Security Threat: SSRF Vulnerabilities
In this case, the attack was observed and ultimately prevented because the targeted environment was using IMDSv2, which blocked the attacker's attempt to retrieve the credentials. However, in environments still using IMDSv1, this exploit would have resulted in a full compromise of the EC2 instance's IAM credentials. This incident demonstrates that attackers are continuously searching for and exploiting new SSRF vulnerabilities in common applications running on EC2.
Have you encountered this metadata endpoint in an unexpected place? Share your experience — and check your WAF logs today.
Applications that must fetch remote resources should never accept arbitrary URLs from users. Implement a strict of approved domains.
The base URL for the latest metadata is http://169.254.169.254/latest/meta-data/ . 2. The Role of .../iam/security-credentials/
These credentials are the keys to the kingdom. An attacker who successfully exfiltrates them can use them to authenticate to AWS APIs with the same permissions as the EC2 instance's IAM role. This can allow them to access S3 buckets, launch or terminate instances, create backdoors, and perform a wide range of malicious actions, effectively granting them control over the AWS environment.
Launch your Graphy