ctf-writeup/2023/Tenable CTF 2023/3 Strikes and you’re out!

3 Strikes and you're out!

About the Challenge

We given some images looks like hint for the challenge, and also try to find the right publication of tenable

How to Solve

First when we see the image, it's look like a cutted image and i found this

It's a logo from CMS Strikingly, so let's dig deeper

And then i found this

We try to visit the publication article and view source the article

We found something

<!-- be bg a_ bf bc a_ bf bc a_ bf b_ a_ bf bb a_ bb e` a_ ba ee a_ ba ee a_ bf bf a_ bf bf a_ bf bf a_ ba ed a_ bf bc a_ be bd a_ be ed a_ be b` a_ be ba a_ be eb a_ be bd a_ ba ed a_ be bb a_ be ee a_ be ec a_ ba ee a_ bf bb a_ be bd a_ be bb a_ bf bd a_ bf ba a_ be bh a_ bf bc a_ bf bh a_ ba ee a_ bf ba a_ be bd a_ bf bb a_ be bd a_ be b` a_ bf ba a_ be bb a_ be bg a_ ba ee a_ bf bc a_ bf ba a_ be b` a_ ba ec a_ bb ba a_ bb b_ a_ bb ba a_ bb bb a_ ba ec a_ bb ba a_ bb b_ -->

Then we try to decode it

We got a url, so let's visit it and get the view source

In the caption we need 231 CPUs maybe it's more like 231 CVE right?

So we googled it

View source the article and we got something

And we decode it

flag{d3Cod3_d@_iNT3Rn3Tz}