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Bypass captcha based protection by adding headers

Bypass captcha based protection by adding headers

Attackers can circumvent captcha protection by adding headers like x-forwarded-for, compromising the system's security.

Lack of Resources & Rate Limiting (RL)

Business Logic

"The inclusion of specific headers, such as x-forwarded-for, empowers attackers to bypass captcha protection mechanisms, posing a significant threat to the system's security." "By manipulating these headers, malicious actors can undermine the intended security measures, potentially leading to data breaches and other detrimental consequences that compromise the overall system integrity."

"The inclusion of specific headers, such as x-forwarded-for, empowers attackers to bypass captcha protection mechanisms, posing a significant threat to the system's security." "By manipulating these headers, malicious actors can undermine the intended security measures, potentially leading to data breaches and other detrimental consequences that compromise the overall system integrity."

Impact of the vulnerability

Impact of the vulnerability

Bypassing CAPTCHA protection enables hackers to automate malicious activities, such as unauthorized account access, spamming, data harvesting, and DDoS attacks.

Bypassing CAPTCHA protection enables hackers to automate malicious activities, such as unauthorized account access, spamming, data harvesting, and DDoS attacks.

How this template works

APIs Selection

The template uses API selection filters to specify the criteria for selecting the API requests to be executed. It filters requests based on the response code being between 200 and 300, or if the request payload or query parameter contains the word "captcha" and extracts the value of the "captcha_key" parameter.

Execute request

The template defines a single request to be executed. It includes deleting the "captcha_key" from both the request body and query parameters, and adding a header "x-forwarded-for" with the value "127.0.0.1". This is done to bypass captcha protection by manipulating headers.

Validation

After executing the request, the template validates the response. It checks that the response code is between 200 and 300, the percentage match of the response payload is greater than 80%, and the length of the response is greater than 0. These validation criteria ensure that the request was successful and the response contains the expected data.

Frequently asked questions

What is the purpose of the "Bypass captcha based protection by adding headers" test

How can attackers manipulate headers to bypass captcha protection

What are the potential consequences of bypassing captcha protection

What category and severity level does the "Bypass captcha based protection by adding headers" fall under

Are there any references or resources available for further information on this vulnerability

What are the specific API selection filters and execution steps involved in this test

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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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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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Rippling

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