Sensitive AWS details exposed via replacing XML param due to SSRF
The endpoint appears to be vulnerable to Server Side Request Forgery attack. The original request was replayed by replacing XML upload parameter with url that redirects to AWS IMDS endpoint. The application responded with 2XX success code and also gave out sensitive AWS information in response.
Server Side Request Forgery (SSRF)
How this template works
APIs Selection
The template uses API selection filters to specify the criteria for selecting the APIs to be tested. In this case, the filters include checking the response code to be between 200 and 204, and checking if the request payload or query parameter contains a ".xml" extension.
Execute request
The template uses a single execution type, which means it will execute a single request. The request is modified by replacing the "xml_key" query parameter and body parameter with a specific URL. This modification is done using the "modify_query_param" and "modify_body_param" actions.
Validation
After executing the request, the template validates the response. It checks if the response code is between 200 and 299, indicating a successful request. It also checks if the response payload contains any of the specified sensitive AWS information, such as "ami-id" or "block-device-mapping". If the validation criteria are met, the test is considered successful.
Frequently asked questions
What is the purpose of this test
How does SSRF vulnerability occur
What are some common scenarios that make SSRF more prevalent
Why is SSRF considered more dangerous in modern technologies
Why is it challenging to limit outbound traffic from modern applications
Can SSRF risk be completely eliminated
"The text editor in Akto is absolutely remarkable. Its user-friendly YAML format strikes the perfect balance between simplicity and power. With intuitive features like 'API selection filter', 'Execute', Validate' creating test rules becomes incredibly easy. Akto's test editor is a game-changer, enabling seamless creation of highly personalized and effective tests that could meet the needs of any modern day organization. "
Security team,
Rippling
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