Completed the Hack The Box “CobbleStone” Insane machine, chaining multiple vulnerabilities to achieve full system compromise.

Initial access was achieved through SSRF in the skin suggestion feature, followed by SQL injection and stored XSS to compromise the administrator’s session. The stolen session cookie provided admin access, leading to Twig SSTI and RCE as www-data. Database credentials recovered through SSTI enabled a database dump and password cracking, resulting in SSH access as cobble and the user flag.

Local enumeration revealed Cobbler’s XML-RPC service on port 25151. After identifying Cobbler 3.3.6 as vulnerable to CVE-2024-47533, a malicious Cheetah template was used to execute commands with root privileges. This provided a root shell and access to /root/root.txt.

#HackTheBox #HTB #CobbleStone #CyberSecurity #PenetrationTesting #OffensiveSecurity #WebSecurity #SSRF #SQLInjection #XSS #SSTI #PrivilegeEscalation #CVE-2024-47533 …

Learn MoreHackTheBox: CobbleStone Machine Walkthrough – Insane Difficulty

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Just wrapped up another Hack The Box machine: Fries (Hard).

TThis machine provided a realistic attack path that started with source code review in Gitea, where leaked credentials in a Git commit led to authenticated PostgreSQL RCE through pgAdmin. From there, I pivoted through the internal Docker network using Ligolo-ng, abused an exposed NFS share and debugfs to gain host access, then exploited PWM configuration weaknesses to capture LDAP credentials. The final stage involved Active Directory enumeration and AD CS (ESC6/ESC7) abuse to obtain an administrator certificate and compromise the domain. A great lab for practising web exploitation, Docker security, Linux privilege escalation, internal pivoting, and Active Directory attacks.

#HackTheBox #HTB #CyberSecurity #PenetrationTesting #RedTeam #ActiveDirectory #ADCS #Docker #Ligolo #PostgreSQL #Gitea #EthicalHacking #Writeup #CTF …

Learn MoreHack The Box: Fries Machine Walkthrough – Hard Difficulty

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