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en/ctf/ctfatac2025_finals/index.html

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en/ctf/ctfatac2025_quals/index.html

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en/ctf/index.html

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<article class="post-entry">
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<header class="entry-header">
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<h2 class="entry-hint-parent">CTF@AC 2025
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<h2 class="entry-hint-parent">CTF@AC 2025 Finals
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</h2>
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</header>
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<div class="entry-content">
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<p>CTF@AC 2025 Web 🌐 money Analysis The challenge exposes a minimal dashboard that supports third‑party plugins. When we upload a plugin, the platform also lets us download any existing ones (including the official flag.plugin).
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<p>CTF@AC 2025 Finals We (Paolo) partecipated this CTF in Timișoara from Fri, 07 Nov. 2025, 16:00 CET until Sun, 09 Nov. 2025, 10:00 CET arriving 2nd overall 🥳.
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Even though it was our first experience as a CTF in an international contest we managed to have real fun while solving these challenges.
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Team components that partecipated:
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Marco Balducci (@Cryingfreeman74) Alan Davide Bovo (@Hecker404) Enea Maroncelli (@Zazaman) ...</p>
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</div>
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<footer class="entry-footer"><span title='2025-11-09 00:00:00 +0000 UTC'>November 9, 2025</span>&nbsp;·&nbsp;47 min&nbsp;·&nbsp;9950 words&nbsp;·&nbsp;Paolo</footer>
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<a class="entry-link" aria-label="post link to CTF@AC 2025 Finals" href="https://pascalctf.github.io/en/ctf/ctfatac2025_finals/"></a>
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</article>
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<article class="post-entry">
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<header class="entry-header">
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<h2 class="entry-hint-parent">CTF@AC 2025 Quals
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</h2>
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</header>
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<div class="entry-content">
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<p>CTF@AC 2025 Quals Web 🌐 money Analysis The challenge exposes a minimal dashboard that supports third‑party plugins. When we upload a plugin, the platform also lets us download any existing ones (including the official flag.plugin).
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Exploit After downloading flag.plugin, we notice it’s encrypted. The server.py file contains both the key and the function to decrypt it, so we can locally decrypt it using decrypt_file.
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KEY = b&#34;SECRET_KEY!123456XXXXXXXXXXXXXXX&#34; def decrypt_file(input_path, output_path, key): with open(input_path, &#34;rb&#34;) as f: data = f.read() iv = data[:16] ciphertext = data[16:] cipher = AES.new(key, AES.MODE_CBC, iv) plaintext = unpad(cipher.decrypt(ciphertext), AES.block_size) with open(output_path, &#34;wb&#34;) as f: f.write(plaintext) The decrypted flag.plugin init.py contains the following code:
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...</p>
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</div>
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<footer class="entry-footer"><span title='2025-09-16 00:00:00 +0000 UTC'>September 16, 2025</span>&nbsp;·&nbsp;36 min&nbsp;·&nbsp;7545 words&nbsp;·&nbsp;Paolo</footer>
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<a class="entry-link" aria-label="post link to CTF@AC 2025" href="https://pascalctf.github.io/en/ctf/ctfatac/"></a>
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<footer class="entry-footer"><span title='2025-09-16 00:00:00 +0000 UTC'>September 16, 2025</span>&nbsp;·&nbsp;36 min&nbsp;·&nbsp;7546 words&nbsp;·&nbsp;Paolo</footer>
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<a class="entry-link" aria-label="post link to CTF@AC 2025 Quals" href="https://pascalctf.github.io/en/ctf/ctfatac2025_quals/"></a>
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</article>
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<description>Recent content in Capture The Flag 🚩 on Paolo</description>
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<title>CTF@AC 2025</title>
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<link>https://pascalctf.github.io/en/ctf/ctfatac/</link>
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<title>CTF@AC 2025 Finals</title>
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<title>CTF@AC 2025 Quals</title>
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<link>https://pascalctf.github.io/en/ctf/ctfatac2025_quals/</link>
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<pubDate>Tue, 16 Sep 2025 00:00:00 +0000</pubDate>
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<guid>https://pascalctf.github.io/en/ctf/ctfatac/</guid>
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<description>Some writeups of the CTF@AC ctf 2025 edition.</description>
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<guid>https://pascalctf.github.io/en/ctf/ctfatac2025_quals/</guid>
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<description>Some writeups of the CTF@AC Quals ctf 2025 edition.</description>
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en/ctf/scriptctf2025/index.html

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<li><a href="https://pascalctf.github.io/en/tags/osint/">Osint</a></li>
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</ul>
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<nav class="paginav">
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<a class="prev" href="https://pascalctf.github.io/en/ctf/ctfatac/">
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<a class="prev" href="https://pascalctf.github.io/en/ctf/ctfatac2025_quals/">
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<span class="title">« Prev</span>
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<br>
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<span>CTF@AC 2025</span>
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<span>CTF@AC 2025 Quals</span>
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</a>
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<a class="next" href="https://pascalctf.github.io/en/ctf/pascalctf2025/">
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<span class="title">Next »</span>

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<description>Recent content on Paolo</description>
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&lt;/div&gt;</description>
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<title>CTF@AC 2025</title>
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<link>https://pascalctf.github.io/en/ctf/ctfatac/</link>
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<title>CTF@AC 2025 Quals</title>
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<link>https://pascalctf.github.io/en/ctf/ctfatac2025_quals/</link>
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<pubDate>Tue, 16 Sep 2025 00:00:00 +0000</pubDate>
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<guid>https://pascalctf.github.io/en/ctf/ctfatac/</guid>
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<description>Some writeups of the CTF@AC ctf 2025 edition.</description>
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<guid>https://pascalctf.github.io/en/ctf/ctfatac2025_quals/</guid>
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<description>Some writeups of the CTF@AC Quals ctf 2025 edition.</description>
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201214
/>
202215
</url><url>
203216
<loc>https://pascalctf.github.io/en/tags/osint/</loc>

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