Access Control Bypass by changing request method to HEAD

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Learn how attackers bypass access controls by changing HTTP request methods to HEAD, understand the security risks, and discover best practices to prevent unauthorized access.

Unnecessary HTTP Methods (UHM)

How this template works

APIs Selection

The template uses the "response_code" filter to select APIs that have a response code equal to 302. This filter ensures that only APIs with a specific response code are targeted for testing.

Execute request

The template specifies a single request to be executed. It modifies the HTTP method to HEAD and removes the authentication header from the request. This is done to test if the server is vulnerable to access control bypass by changing the request method to HEAD.

Validation

The template validates the response code of the executed request. It checks if the response code is greater than or equal to 200 and less than 300, indicating a successful response. This validation ensures that the server responded with a 2XX success code, indicating a potential access control bypass vulnerability.

Frequently asked questions

What is the purpose of the HEAD_METHOD_TEST in this array

How does the access control bypass vulnerability occur in this test

What is the impact of the access control bypass vulnerability in this test

What is the severity level assigned to this vulnerability

What are the tags associated with this vulnerability

Can you provide references for further reading on this vulnerability

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Security team,

Loom

Security team,

Loom

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