XXE Injection Attack — TryHackMe Walkthrough
TryHackMe's Web App PenTest -- XXE Injection:
https://tryhackme.com/room/xxeinjection
-----
In this episode, we delve into the intricacies of XML External Entity (XXE) Injection, a prevalent security vulnerability in web applications. We cover the basics of XML and its structure, common use cases in web applications, and the roles of DTDs and XSLT in XXE attacks. The video includes practical demonstrations of inbound and outbound XXE exploitation techniques and discusses how these attacks can lead to severe security breaches such as data exfiltration, server compromise, and denial of service. Finally, we discuss best practices and mitigation techniques to prevent such vulnerabilities, emphasizing the need for secure coding practices and regular security audits.
00:00 Introduction
01:10 Exploring XML
13:53 XML Parsing Mechanism
17:04 Exploiting XXE In-band
45:25 Conclusion