# Santa's No Password Login System (Web)
Hi CTF player. If you have any questions about the writeup or challenge. Submit a issue and I will try to help you understand.
Also I might be wrong on some things. Enjoy :)
(P.S Check out my [CTF cheat sheet](https://github.com/flawwan/CTF-Candy))
![alt text](1.png "Chall")
The website looks like this:
![alt text](2.png "Chall")
Nothing interesting in the source of the website.
![alt text](3.png "Chall")
With this information I am certain we should either inject stuff in the Referer header or the user agent header.
I tried fuzzing the Referer with common user agents but no luck there. Moving on to the user agent header.
First I wrote my own fuzz tool to target the user-agent header. No fun in using ZAP:p.
Script available here [script.py](script.py)
After a few seconds the program stopped and said:
```[y] Success, ' or '1'='1```
Now it says welcome instead of access denied. This means we have a sql injection.
Let's verify it with ZAP.
![alt text](5.png "Chall")
![alt text](4.png "Chall")
Cool. Let's fire up `sqlmap` and dump the tables.
### Using SQLmap to target User-Agent.
```$ sqlmap -u "http://199.247.6.180:12003/" --level 3 --random-agent --dbs```
* This will use a random user agent as the sqlmap user agent was blocked by the server.* level 3 is used to target the Referer and user-agent header.
Running the script we can speed things up by pressing [CTRL-C] as sqlmap will first try to exploit the Referer header. We know the sqli is in the user-agent field. Now press [n] for next parameter which will be our user-agent.
![alt text](6.png "Chall")
Cool we have the databases for the mysql database.
Now we can dump the tables of db.
![alt text](7.png "Chall")
And then we dump the columns of the uas table.
![alt text](8.png "Chall")
And finally we dump the content of the uas table.
![alt text](9.png "Chall")