Writeup Matrix
Browse through machines I've pwned. Filter writeups by retirement status, OS, difficulty, or season.
Fireflow is a medium Linux machine featuring a Langflow AI agent platform vulnerable to CVE-2026-33017, unauthenticated RCE via exec() injection to gain a foothold, Langflow superuser credentials leaked from the process environment for lateral movement, a JWT alg:none bypass against an MCP Tool Registry for code execution inside a Kubernetes pod, and kubelet WebSocket exec via nodes/proxy RBAC against a privileged node-exporter pod with the host filesystem mounted for root.
Nexus is an easy Linux machine featuring a Gitea instance that leaks a legacy password in its commit history, a Krayin CRM login vulnerable to authenticated RCE via TinyMCE uploads (CVE-2026-38526) for a foothold as www-data, reused .env credentials to pivot to jones, and a root-run Gitea template-sync script whose unsanitized os.path.join enables a Git path-traversal write to root's authorized_keys.
Expressway is an easy Linux machine featuring an IKE/IPsec VPN endpoint that leaks an aggressive-mode pre-shared key, offline IKE-PSK SHA1 cracking for SSH access as the ike user, and a vulnerable sudo version (CVE-2025-32463) leading straight to root.
Alert is an easy Linux machine featuring a markdown viewer with stored cross-site scripting, an admin-only page vulnerable to arbitrary file read used to steal an .htpasswd hash, cracked credentials for SSH, and a group-writable PHP config served by root for privilege escalation.
Editorial is an easy Linux machine featuring a book-publishing web app vulnerable to server-side request forgery, an internal Flask API leaking dev credentials, plaintext credentials in git history for lateral movement, and a GitPython RCE (CVE-2022-24439) via a root sudo script for privilege escalation.
BoardLight is an easy Linux machine featuring a Dolibarr CRM/ERP instance vulnerable to CVE-2023-30253, PHP code injection to gain a foothold, reused database credentials to pivot laterally, and an Enlightenment SUID abuse (CVE-2022-37706) for privesc.
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