Medium Machine Archives - Page 2 of 10

10 Jan, 2026

Hack The Box: Previous Machine Walkthrough – Medium Difficulty

Medium Machine BurpSuite, Challenges, CVECVE-2025-29927, gcc, gobuster, HackTheBox, Linux, Path Traversal, Penetration Testing, PreviousJS, python3, ssh, terraform

🎯 Just rooted the ‘Previous’ machine on Hack The Box!

Started with a Next.js app exposing a path traversal bug in /api/download, leaked /etc/passwd → found user ‘jeremy’, then extracted the NextAuth provider code revealing credentials.

Abused .terraformrc dev_overrides to load a malicious custom provider binary.
Classic NextAuth misconfig + Terraform provider override chain. Loved the creativity!

#HackTheBox #CTF #PrivilegeEscalation #PathTraversal #NextJS #Terraform #CyberSecurity #PenetrationTesting #BugBounty”
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Learn MoreHack The Box: Previous Machine Walkthrough – Medium Difficulty

30 Nov, 2025

Hack The Box: Era Machine Walkthrough – Medium Difficulity

Medium Machine BurpSuite, Challenges, ftp, gobuster, HackTheBox, idor, Linux, monitor, Penetration Testing, ssh

Compromising the Era HTB machine involved chaining multiple weaknesses across the web layer and system layer. Initial access was obtained through an IDOR flaw in a file-sharing platform, allowing unrestricted file retrieval by enumerating numeric IDs. Leaked backups exposed source code, plaintext credentials, and an SSH private key, enabling lateral movement as eric. Further analysis uncovered a root-executed integrity-check binary in a world-writable directory. By extracting its signature, injecting it into a backdoored replacement, and waiting for the cron job to trigger, privileged execution was achieved. A resulting callback delivered full root access and allowed retrieval of the final flag.

#HTB #HackTheBox #CyberSecurity #Pentesting #WebSecurity #IDOR #PrivilegeEscalation #LinuxSecurity #RedTeam #CTF #InfoSec …

Learn MoreHack The Box: Era Machine Walkthrough – Medium Difficulity

1 Nov, 2025

Hack The Box: Voleur Machinen Walkthrough – Medium Difficulty

Medium Machine Active Directory, BloodHoundCE, bloodyAD, Challenges, DPAPI, HackTheBox, hashcat, impacket, john the ripper, office2john, Penetration Testing, smbclient, Windows

11 Oct, 2025

Hack The Box: Tombwatcher Machine Walkthrough – Medium Difficulty

Medium Machine BloodHoundCE, bloodyAD, Certipy, Challenges, ESC15, HackTheBox, hashcat, Penetration Testing, TargetKerboasting, Windows

I cracked a Kerberos TGS for Alfred (password: basketballl), used BloodHound-guided enumeration and account takeover to obtain John’s machine credentials and retrieved the user flag (type user.txt); then I abused a misconfigured certificate template (ESC15) with Certipy to request an Administrator certificate, obtained a TGT (administrator.ccache), extracted the Administrator NT hash and used it to access the DC and read the root flag (type root.txt).

#HackTheBox #RedTeam #ActiveDirectory #Kerberos #CertAuth #BloodHound #OffensiveSecurity #Infosec #PrivilegeEscalation …

Learn MoreHack The Box: Tombwatcher Machine Walkthrough – Medium Difficulty

27 Sep, 2025

Hack The Box: Puppy Machine Walkthrough – Medium Difficulty

Medium Machine BloodHoundCE, bloodyAD, Challenges, evil-winrm, HackTheBox, impacket, KDBX, ldapmodify, ldapsearch, Penetration Testing, rpcclient, smbclient, Windows

Crushed the Puppy machine on HTB with surgical precision! Unlocked the user flag by leveraging levi.james credentials to access the DEV share, cracking recovery.kdbx with “Liverpool,” and using ant.edwards:Antman2025! to reset ADAM.SILVER’s password, followed by a swift WinRM login to grab user.txt. For the root flag, extracted steph.cooper:ChefSteph2025! from C:\Backups, accessed a WinRM shell, and exfiltrated DPAPI keys via SMB. Impacket unveiled steph.cooper_adm:FivethChipOnItsWay2025!, opening the Administrator directory to claim root.txt.

#Cybersecurity #HackTheBox #CTF #Pentesting #PrivilegeEscalation …

Learn MoreHack The Box: Puppy Machine Walkthrough – Medium Difficulty

6 Sep, 2025

Hack The Box: Environment Machine Walkthough-Medium Difficulty

Medium Machine BurpSuite, Challenges, cve-2024-21546, CVE-2024-52301, GnuPG key, gobuster, HackTheBox, lavarel, Linux, Penetration Testing, PHP, python3, ssh, systeminfo

Environment HTB: Full User & Root Flag Capture Through Exploitation

Captured both the user and root flags on the Environment HTB machine! We exploited Laravel 11.30.0 (PHP 8.2.28) vulnerabilities, including argument injection (CVE-2024-52301) and UniSharp Laravel Filemanager code injection. By bypassing authentication with `–env=preprod` and leveraging the profile upload feature, we executed a PHP reverse shell and retrieved the user flag via `cat user.txt`. For root access, we decrypted `keyvault.gpg` from the `.gnupg` directory to obtain credentials and exploited sudo with preserved BASH\_ENV by crafting a script that spawned a privileged shell, ultimately gaining full control of the system.

#CyberSecurity #HTB #PenTesting #EthicalHacking #LaravelExploits #PrivilegeEscalation #PHP #Infosec #BugBounty #RedTeam
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Learn MoreHack The Box: Environment Machine Walkthough-Medium Difficulty

23 Aug, 2025

Hack The Box: TheFrizz Machine Walkthrough – Medium Difficulity

Medium Machine BloodHoundCE, BurpSuite, Challenges, CVE-2023-34598, faketime, Gibbon, HackTheBox, hashcat, impacket, Local Fle Inclusion, Penetration Testing, python3, SharpGPOAbuse, sqlite3, ssh, Windows

I successfully captured both user and root flags by exploiting a file upload vulnerability to gain a web shell, extracting database credentials from config.php, and cracking the user hash to reveal the password Jenni_Luvs_Magic23. Using these credentials, I accessed the web application, discovered an SSH migration hint, and leveraged a Kerberos ticket (f.frizzle.ccache) to gain SSH access and retrieve the user flag with type user.txt. For the root flag, I escalated privileges using M.SchoolBus and SharpGPOAbuse to manipulate SleepGPO, applied changes with gpupdate.exe /force, extracted credentials with secretdump, and used wmiexec to secure a root-level shell, ultimately reading the root flag with type root.txt.

#Cybersecurity #CTF #EthicalHacking #PenetrationTesting …

Learn MoreHack The Box: TheFrizz Machine Walkthrough – Medium Difficulity

26 Jul, 2025

Hack The Box: Cypher Machine Walkthrough – Medium Difficultyy

Medium Machine bbot, BurpSuite, Challenges, Cypher Injection, gobuster, HackTheBox, jadx-gui, jar, Linux, neo4j, Penetration Testing, python3

5 Jul, 2025

Hack The Box: Cat Machine Walkthrough – Medium Diffculity

Medium Machine BurpSuite, Challenges, command injection, Cross Site Scripting, git-dumper, Gitea, gobuster, HackTheBox, hashcat, Linux, Penetration Testing, port forwarding, source code review, SQL, SQL Injection, sqlite3, ssh

Hack The Box Success: Cat Machine Write-Up Published!

I’ve just published my personal write-up for the Cat machine on Hack The Box. In this challenge, I gained the user flag by exploiting a Stored XSS vulnerability to capture the admin session cookie, followed by an SQL Injection to extract credentials and gain SSH access. For the root flag, I took advantage of a vulnerable image processing script owned by root, crafting a payload to gain a root shell and retrieve the flag. The full write-up dives into each step, the logic behind the attacks, and key takeaways.

#CyberSecurity #HackTheBox #PenetrationTesting #EthicalHacking #CTF #WriteUp #XSS #SQLi #PrivilegeEscalation #InfoSec #CTFWriteup …

Learn MoreHack The Box: Cat Machine Walkthrough – Medium Diffculity

7 Jun, 2025

Hack The Box: Backfire Machine Walkthrough – Medium Difficulty

Medium Machine Challenges, CVE-2024-41570, HackTheBox, Havoc C2, iptables, iptables-save, jwt, Linux, Penetration Testing, port forwarding, python3, ssh

Successfully rooted another Hack The Box machine by chaining multiple vulnerabilities across custom C2 frameworks. For the user flag, we exploited an SSRF vulnerability (CVE-2024-41570) in the Havoc C2 framework to access internal services, which we then chained with an authenticated RCE to execute arbitrary commands and gain a reverse shell as the ilya user. To maintain stable access, SSH keys were added for persistence, allowing us to retrieve the user.txt flag. For the root flag, we targeted the Hardhat C2 service by forging a valid JWT with a Python script to create an admin user, which provided shell access as sergej. Upon privilege escalation analysis, we found that sergej had sudo access to the iptables-save binary. This was abused to overwrite the /etc/sudoers file and escalate to root, ultimately retrieving the root.txt flag. Another great learning experience on the path to mastering offensive security!

#HackTheBox #CyberSecurity #InfoSec #RedTeam #CTF #PrivilegeEscalation #RCE #SSRF #Linux #HTB #EthicalHacking #PenetrationTesting #HavocC2 #HardhatC2 #JWT #SudoExploit #OSCP #BugBounty …

Learn MoreHack The Box: Backfire Machine Walkthrough – Medium Difficulty

Threatninja.net

Threatninja.net

Hack The Box: Previous Machine Walkthrough – Medium Difficulty

Hack The Box: Era Machine Walkthrough – Medium Difficulity

Hack The Box: Voleur Machinen Walkthrough – Medium Difficulty

Hack The Box: Tombwatcher Machine Walkthrough – Medium Difficulty

Hack The Box: Puppy Machine Walkthrough – Medium Difficulty

Hack The Box: Environment Machine Walkthough-Medium Difficulty

Hack The Box: TheFrizz Machine Walkthrough – Medium Difficulity

Hack The Box: Cypher Machine Walkthrough – Medium Difficultyy

Hack The Box: Cat Machine Walkthrough – Medium Diffculity

Hack The Box: Backfire Machine Walkthrough – Medium Difficulty

Threatninja.net

Threatninja.net

Category Archives: Medium Machine