Mutillidae - Application Log Injection (Register User)

Mutillidae – Application Log Injection (Register User)

In this walk through, we will be going through the Application Log Injection (Register User) vulnerability section from Mutillidae Labs. We will be exploring and exploiting Application Log Injection in Register User functionality and learn how application are affected because of it. So, let’s get started with the Hacking without any delay.

Application Log Injection (Register User)

Security Level: 0 (Hosed)

  • Setting the security level to 0 or Hosed.

Security level 0

  • The application has a user registration functionality. Although we have successfully exploited it in SQL injection section. Let’s inject some code on the client side.

Register User and Create account

  • I used the below payload to generate a pop-up alert on the front end.



pop up alert

Also Read: Mutillidae – Application Log Injection (Document Viewer)



So, we finally completed all the security levels for the Mutillidae Application Log Injection (Register User) Vulnerability. We looked into the various ways how application has been set up in various levels and how we can bypass the security controls implemented. Next, we can mitigate the potential Application Log Injection attacks by performing input sanitization on endpoints, whitelist the allowed characters in the input and using a WAF. Along with that, we can prevent data from any untrusted source to be dynamically written to the HTML document. On that note, i will take your leave and will meet you in next one with another Mutillidae vulnerability writeup, till then “Keep Hacking”.

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