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Mass assignment leading to modification of account

Mass assignment leading to modification of account

The endpoint appears to be vulnerable to Mass Assignment attack. The original request was replayed by changing account value in request body. The application responded with 2XX success code in response.

Mass Assignment (MA)

"The endpoint appears to be vulnerable to Mass Assignment attack. The original request was replayed by changing account value in request body. The application responded with 2XX success code in response. <b>Background:</b> Objects in modern applications might contain many properties. Some of these properties should be updated directly by the client (e.g., user.first_name or user.address) and some of them should not (e.g., user.is_vip flag).\n" "An API endpoint is vulnerable if it automatically converts client parameters into internal object properties, without considering the sensitivity and the exposure level of these properties. This could allow an attacker to update object properties that they should not have access to.\n" "Examples for sensitive properties: Permission-related properties: user.is_admin, user.is_vip should only be set by admins. Process-dependent properties: user.cash should only be set internally after payment verification. Internal properties: article.created_time should only be set internally by the application."

"The endpoint appears to be vulnerable to Mass Assignment attack. The original request was replayed by changing account value in request body. The application responded with 2XX success code in response. <b>Background:</b> Objects in modern applications might contain many properties. Some of these properties should be updated directly by the client (e.g., user.first_name or user.address) and some of them should not (e.g., user.is_vip flag).\n" "An API endpoint is vulnerable if it automatically converts client parameters into internal object properties, without considering the sensitivity and the exposure level of these properties. This could allow an attacker to update object properties that they should not have access to.\n" "Examples for sensitive properties: Permission-related properties: user.is_admin, user.is_vip should only be set by admins. Process-dependent properties: user.cash should only be set internally after payment verification. Internal properties: article.created_time should only be set internally by the application."

Impact of the vulnerability

Impact of the vulnerability

Exploitation can lead to privilege escalation.

Exploitation can lead to privilege escalation.

How this template works

APIs Selection

The template uses API selection filters to specify the criteria for selecting the API endpoints to be tested. It filters the endpoints based on the response code (between 200 and 299), the HTTP method (PUT, POST, or PATCH), and the presence of the "account" key in the response payload.

Execute request

The template executes a single request by adding a body parameter to the request payload. It extracts the value of the "account_context" from the parameter context and adds it as a key-value pair in the request body.

Validation

The template validates the response by checking if the response code is between 200 and 299 and if the response payload contains the "account_key" with a value equal to the "account_context.value".

Frequently asked questions

What is a Mass Assignment vulnerability and how does it impact the security of an application

How does the test identify if an API endpoint is vulnerable to Mass Assignment attacks

What are some examples of sensitive properties that should not be updated by clients

How does the test categorize the severity of a Mass Assignment vulnerability

What are the selection filters used to identify vulnerable API endpoints

How does the test validate if the vulnerability has been successfully exploited

Loved by security teams!

Loved by security teams!

Product Hunt Badge

"We are absolutely thrilled with the testing feature of Akto. We have used it on our graphQL endpoints and it performs flawlessly identifying common API security issues. It's truly a game-changer and we highly recommend Akto to anyone looking to effortlessly secure their API endpoints. With a user-friendly interface, it's the perfect solution for anyone looking to embrace custom rules with context to reduce false positives."

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Security team,

Loom

"We are absolutely thrilled with the testing feature of Akto. We have used it on our graphQL endpoints and it performs flawlessly identifying common API security issues. It's truly a game-changer and we highly recommend Akto to anyone looking to effortlessly secure their API endpoints. With a user-friendly interface, it's the perfect solution for anyone looking to embrace custom rules with context to reduce false positives."

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Security team,

Loom

"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. "

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Security team,

Rippling

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