Responsive
Overview
- Overall difficulty for me: Medium
In this challenge, we can spawn a docker instance:
Find the flag
Home page:
We’re prompt to a login page!
We can try to guess the username and password:
Hmm… No luck.
If you look carefully in the header: No Login, and a login prompt.
This got me thinking: Is this about NoSQL injection authentication bypass??
According to this blog, we can bypass it via [$ne]:
Let’s fire up Burp Suite and capture the POST request!
Modify the POST value and forward the request:
We’re in!
Conclusion
What we’ve learned:
- Authentication Bypass via NoSQL Injection