https://harpi.cc/harpi-portfolio/tags/cve/Recent content in Cve on harpi — Security ResearcherHugoen-usSun, 22 Mar 2026 17:14:13 +0200https://harpi.cc/harpi-portfolio/blog/htb-previous/Tue, 26 Aug 2025 00:00:00 +0000https://harpi.cc/harpi-portfolio/blog/htb-previous/<div class="htb-card"> <span class="htb-tag htb-difficulty htb-medium">Medium</span> <span class="htb-tag htb-os">Linux</span> <span class="htb-tag htb-date">Retired: 2025-08-26</span> </div> <h2 id="reconnaissance">Reconnaissance</h2> <h3 id="service-scan">Service Scan</h3> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">nmap -sCV -vv previous.htb </span></span></code></pre></td></tr></table> </div> </div><div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-text" data-lang="text"><span class="line"><span class="cl">PORT STATE SERVICE VERSION </span></span><span class="line"><span class="cl">22/tcp open ssh OpenSSH 8.9p1 Ubuntu 3ubuntu0.13 </span></span><span class="line"><span class="cl">80/tcp open http nginx 1.18.0 (Ubuntu) </span></span><span class="line"><span class="cl">|_http-title: Did not follow redirect to http://previous.htb/ </span></span></code></pre></td></tr></table> </div> </div><p>Two ports — SSH and an nginx reverse proxy redirecting to <code>previous.htb</code>. Adding that to <code>/etc/hosts</code> and visiting the site reveals <strong>PreviousJS</strong> — a documentation platform built on Next.js.</p>