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You're reading from  Burp Suite Cookbook - Second Edition

Product typeBook
Published inOct 2023
PublisherPackt
ISBN-139781835081075
Edition2nd Edition
Tools
Burp Suite
Concepts
Penetration Testing
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Author (1)
Dr. Sunny Wear
Dr. Sunny Wear
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Dr. Sunny Wear

Dr. Sunny Wear is a web security architect and penetration tester. She provides secure coding classes, creates software, and performs penetration testing on web/API and mobile applications. Sunny has more than 25 years of hands-on software programming, architecture, and security experience and holds a Doctor of Science in Cybersecurity. She is a content creator on Pluralsight, with three courses on Burp Suite. She is a published author, a developer of mobile apps such as Burp Tool Buddy, and a content creator on courses related to web security and penetration testing. She regularly speaks and holds classes at security conferences such as Defcon, Hackfest, and BSides.
Read more about Dr. Sunny Wear

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Testing CORS

An application implementing HTML5 Cross-Origin Resource Sharing (CORS) means the application will share browser information with another domain that resides at a different origin. By design, browser protections prevent external scripts from accessing information in the browser. This protection is known as Same-Origin Policy (SOP). However, CORS is a means of bypassing SOP permissively. If an application wants to share browser information with a completely different domain, it may do so with properly configured CORS headers.

Web-penetration testers must ensure applications that handle AJAX calls (for example, HTML5) do not have misconfigured CORS headers. Let’s see how Burp Suite can help us identify such misconfigurations.

Getting ready

Log in to your PortSwigger account. Using Lab: CORS vulnerability with basic origin reflection (https://portswigger.net/web-security/cors/lab-basic-origin-reflection-attack), we will see how to identify a CORS vulnerability...

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Burp Suite Cookbook - Second Edition
Published in: Oct 2023Publisher: PacktISBN-13: 9781835081075
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Dr. Sunny Wear

Dr. Sunny Wear is a web security architect and penetration tester. She provides secure coding classes, creates software, and performs penetration testing on web/API and mobile applications. Sunny has more than 25 years of hands-on software programming, architecture, and security experience and holds a Doctor of Science in Cybersecurity. She is a content creator on Pluralsight, with three courses on Burp Suite. She is a published author, a developer of mobile apps such as Burp Tool Buddy, and a content creator on courses related to web security and penetration testing. She regularly speaks and holds classes at security conferences such as Defcon, Hackfest, and BSides.
Read more about Dr. Sunny Wear

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