Lateral Movement

August 26, 2023

OnlyForYou – HackTheBox Writeup

Thoviti Siddharth HackTheBox, Infosec chisel, Cipher Injection, code review, dig, ffuf, Flask, Gogs, HackTheBox, HTB, Lateral Movement, LFI, LinPeas, Linux Box, Neo4j, pip3 download, Port Forwarding, Source Code Review, sub-domain-enumeration 0

Machine Name: OnlyForYou
IP: 10.10.11.210
Difficulty: Medium

Summary

OnlyForYou is a medium machine that starts with discovering a subdomain that is vulnerable to LFI. The LFI is used to read the source code of the application. Improper sanitization of user data in the a part of code that executes shell commands was leveraged to gain a shell as www-data. From this shell, two active ports were found, one of which hosted a login page that used default credentials. The dashboard revealed that the application uses Neo4j database. This information was used to test for Cipher injection. The cipher injection was successful and was used to gain password hashes from the database. The cracked hashes were used to login as user John. Privilege escalation involved abusing the “pip3 download” command that could be run as root by the user.

August 5, 2023

Agile – HackTheBox Writeup

Thoviti Siddharth HackTheBox, Infosec Chromium, CVE-2023-22809, Flask, HackTheBox, HTB, Infosec, Lateral Movement, LFI, Linux Box, MySQL, Port Forwarding, pspy, Remote Debugging Port, Stealing Cookies, Sudo 1.9.9, sudoedit, Werkzeug 0

Machine Name: Agile
IP: 10.10.11.203
Difficulty: Medium

Summary

Agile is a medium machine that starts with discovering a LFI which was leveraged to gain information required to crack the Werkzeug pin. The werkzeug pin allowed console access which allowed us to gain a shell as www-data. A config file revealed MySQL database credentials. The credentials for user corum were found which were used to SSH into the box. Enumerating further, it was found that chrome was running a remote-debugging-port at 41829 which was port forwarded to attacker machine which allowed us access to an existing session of the application. The credentials for user edwards was found here and were used to SSH into the box. Privilege escalation to root involved exploiting the sudo version 1.9.9 which was used to execute a writeable script running as root.