Completed another Hack The Box machine: Devhub (Medium).

Devhub was a great exercise in exploring modern development tooling, service misconfigurations, and Linux privilege escalation. The journey began with web enumeration and identifying an exposed MCP Inspector service. Further investigation revealed a command injection vulnerability that provided initial access to the machine.

From there, internal service enumeration uncovered a localhost-only Jupyter instance. Accessing it through SSH port forwarding and investigating its authentication mechanism opened the path to another user. The final stage involved examining an internal operations service, understanding its exposed functionality, and identifying a weakness that ultimately led to root access.

Devhub highlights how development tools, internal services, and poorly secured administrative functionality can create unexpected attack paths when combined. Another valuable machine for practising enumeration, lateral movement between local users, and privilege escalation.

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Learn MoreHack The Box: Devhub Machine Walkthrough – Medium Difficulty

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Completed the Hack The Box "Kobold" machine, an easy-difficulty Linux challenge focused on web exploitation and container-based privilege escalation.

The assessment involved identifying and exploiting an unauthenticated Remote Code Execution vulnerability (CVE-2026-23744) in MCPJam Inspector to gain initial access as the ben user. During the privilege escalation phase, I explored Docker security weaknesses by leveraging excessive group permissions to escape the container environment and obtain root access. Additionally, I analyzed an alternative attack path involving CVE-2025-64714 in PrivateBin, which allowed sensitive configuration data exposure and access to the Arcane container management interface. This machine provided practical experience in vulnerability exploitation, container security assessment, and identifying risks associated with exposed internal services.

#HackTheBox #HTB #CyberSecurity #PenetrationTesting #OffensiveSecurity #RedTeam #Linux #Docker #VulnerabilityManagement #CVE #EthicalHacking #CybersecurityLearning …

Learn MoreHack The Box: Kobold Machine Walkthrough – Easy Difficulty

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