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Challenges.html
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<!DOCTYPE html>
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<h1 class="text-center m-3">Challenges</h1>
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<div class="row">
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<div class="alert alert-warning">
The competition is already over. You cannot submit any flags now.
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<h3 class="text-start">Misc</h3>
<hr />
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Sanity Check (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-15" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-15">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Sanity Check (100 pts) <span class="d-inline-block">- 778 solves</span><br /><small class="text-muted">by Board</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Welcome to ImaginaryCTF 2023! The sanity check flag is <code>ictf{welcome_to_imaginaryctf_2023!}</code> All flags will follow the regex <code>ictf{[^}]+}</code>.</p>
<b>Attachments</b>
<p>N/A</p>
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<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Discord (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-16" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-16">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Discord (100 pts) <span class="d-inline-block">- 433 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Join our Discord server at <a href="https://discord.gg/ctf/">https://discord.gg/ctf/</a>.</p>
<b>Attachments</b>
<p>N/A</p>
</div>
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<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
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<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Feedback Survey (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-58" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-58">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Feedback Survey (100 pts) <span class="d-inline-block">- 289 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Thank you for playing ImaginaryCTF 2023! We hope you enjoyed. Please give us feedback so we can improve for next year!</p>
<b>Attachments</b>
<p><a href="https://forms.gle/8cjD59jMknsJPvx56">https://forms.gle/8cjD59jMknsJPvx56</a></p>
</div>
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<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
signpost (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-18" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-18">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">signpost (100 pts) <span class="d-inline-block">- 178 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Tracking down pictures can be hard. Surely you can't find where this giant ballpark is...</p>
<p>Submit your flag as <code>ictf{latitude,longitude}</code>, with the coordinates of where the picture was taken rounded to three decimal places. Example: <code>ictf{-42.443,101.333}</code></p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/sZAdu#signpost.png">https://imaginaryctf.org/r/sZAdu#signpost.png</a></p>
</div>
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</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
You shall not call! (498pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-21" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-21">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">You shall not call! (498 pts) <span class="d-inline-block">- 5 solves</span><br /><small class="text-muted">by A~Z</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Never have I seen a pickle, worming its way out of a jail, whose exploitation did not rely upon the calling of some nefarious function.
Thus, I hereby declare: there shall be no call heeded within this domain anymore.
It is for I yearn the secure confinement of pickles; and shall not stand their escape.</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/DvMPf#server.py">https://imaginaryctf.org/r/DvMPf#server.py</a>
<code>nc you-shall-not-call.chal.imaginaryctf.org 1337</code></p>
</div>
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</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
deletion (499pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-17" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-17">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">deletion (499 pts) <span class="d-inline-block">- 4 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Enter your payload:<code>*** stack smashing detected ***: pyjail terminated Aborted (core dumped)</code></p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/MsXr5#main.py">https://imaginaryctf.org/r/MsXr5#main.py</a> <code>nc deletion.chal.imaginaryctf.org 1337</code></p>
</div>
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<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
You shall not call Revenge (499pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-54" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-54">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">You shall not call Revenge (499 pts) <span class="d-inline-block">- 4 solves</span><br /><small class="text-muted">by A~Z</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Never have I seen a pickle, worming its way out of a jail, whose exploitation did not rely upon the calling of some nefarious function.
Thus, I hereby declare: there shall be no call heeded within this domain anymore.
It is for I yearn the secure confinement of pickles; and shall not stand their escape.</p>
<p>The server isn't changed, but you must get RCE to read flag this time.</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/DvMPf#server.py">https://imaginaryctf.org/r/DvMPf#server.py</a>
<code>nc you-shall-not-call-revenge.chal.imaginaryctf.org 1337</code></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
obscured (500pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-19" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-19">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">obscured (500 pts) <span class="d-inline-block">- 2 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>People who consistently push me to read up on obscure quirks of Linux systems - you know who you are.</p>
<b>Attachments</b>
<p><code>nc obscured.chal.imaginaryctf.org 42000</code></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Get and set (500pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-11" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-11">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Get and set (500 pts) <span class="d-inline-block">- 2 solves</span><br /><small class="text-muted">by maple3142</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>A Pyjail with direct code execution gives you too much freedom, so I made a Pyjail where you can only only <code>get</code> and <code>set</code>.</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/M8TZd#server.py">https://imaginaryctf.org/r/M8TZd#server.py</a>
<code>nc get-and-set.chal.imaginaryctf.org 1337</code></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Temu (500pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-3" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-3">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Temu (500 pts) <span class="d-inline-block">- 2 solves</span><br /><small class="text-muted">by puzzler7</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Writing a terminal emulator is one of those things that's not-that-hard to get a proof of concept, but making a polished final product can be tricky. I know there's many a flaw in this one, but I tried to at least make it as pretty as possible</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/tf2yw#temu.py">https://imaginaryctf.org/r/tf2yw#temu.py</a></p>
<pre><code>socat FILE:`tty`,raw,echo=0 TCP:temu.chal.imaginaryctf.org:1337
</code></pre>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<h3 class="text-start">Web</h3>
<hr />
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Idoriot (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-6" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-6">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Idoriot (100 pts) <span class="d-inline-block">- 474 solves</span><br /><small class="text-muted">by tirefire</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Some idiot made this web site that you can log in to. The idiot even made it in php. I dunno.</p>
<b>Attachments</b>
<p><a href="http://idoriot.chal.imaginaryctf.org/">http://idoriot.chal.imaginaryctf.org/</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
inspection (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-48" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-48">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">inspection (100 pts) <span class="d-inline-block">- 473 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p m4rkdown_parser_fail_1a211b44="">Here's a freebie: the flag is ictf.</p>
<b>Attachments</b>
<p>N/A</p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
roks (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-50" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-50">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">roks (100 pts) <span class="d-inline-block">- 328 solves</span><br /><small class="text-muted">by FIREPONY57</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>My rock enthusiast friend made a website to show off some of his pictures. Could you do something with it?</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/0Sm4V#roks.zip">https://imaginaryctf.org/r/0Sm4V#roks.zip</a>
<a href="http://roks.chal.imaginaryctf.org/">http://roks.chal.imaginaryctf.org</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Perfect Picture (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-49" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-49">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Perfect Picture (100 pts) <span class="d-inline-block">- 283 solves</span><br /><small class="text-muted">by FIREPONY57</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Someone seems awful particular about where their pixels go...</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/Gdmod#perfect_picture.zip">https://imaginaryctf.org/r/Gdmod#perfect_picture.zip</a>
<a href="http://perfect-picture.chal.imaginaryctf.org/">http://perfect-picture.chal.imaginaryctf.org</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
blank (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-47" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-47">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">blank (100 pts) <span class="d-inline-block">- 210 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>I asked ChatGPT to make me a website. It refused to make it vulnerable so I added a little something to make it interesting. I might have forgotten something though...</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/FVauo#blank_dist.zip">https://imaginaryctf.org/r/FVauo#blank_dist.zip</a>
<a href="http://blank.chal.imaginaryctf.org/">http://blank.chal.imaginaryctf.org</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
idoriot-revenge (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-51" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-51">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">idoriot-revenge (100 pts) <span class="d-inline-block">- 189 solves</span><br /><small class="text-muted">by tirefire</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>The idiot who made it, made it so bad that the first version was super easy. It was changed to fix it.</p>
<b>Attachments</b>
<p><a href="http://idoriot-revenge.chal.imaginaryctf.org/">http://idoriot-revenge.chal.imaginaryctf.org</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Login (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-13" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-13">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Login (100 pts) <span class="d-inline-block">- 98 solves</span><br /><small class="text-muted">by maple3142</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>A classic PHP login page, nothing special.</p>
<b>Attachments</b>
<p><a href="http://login.chal.imaginaryctf.org/">http://login.chal.imaginaryctf.org/</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
amogus (484pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-5" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-5">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">amogus (484 pts) <span class="d-inline-block">- 14 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>Sometimes the strongest among us are the ones who smile through silent pain, cry behind closed doors, and fight battles nobody knows about.</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/cXEZL">https://imaginaryctf.org/r/cXEZL</a>
<a href="http://amogus.chal.imaginaryctf.org/">http://amogus.chal.imaginaryctf.org/</a>
<code>nc amogus-admin-bot.chal.imaginaryctf.org 1337</code></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Sanitized (498pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-14" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-14">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Sanitized (498 pts) <span class="d-inline-block">- 5 solves</span><br /><small class="text-muted">by maple3142</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>You are not going to find a DOMPurify 0day right?</p>
<b>Attachments</b>
<p><a href="http://sanitized.chal.imaginaryctf.org/">http://sanitized.chal.imaginaryctf.org/</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
Sanitized Revenge (499pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-55" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-55">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">Sanitized Revenge (499 pts) <span class="d-inline-block">- 3 solves</span><br /><small class="text-muted">by maple3142</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>You are not going to find a DOMPurify 0day right?</p>
<p>There is an unintended solution that made the previous one much easier than the intended solution. If you solved the previous one using the intended, this is a free flag for you.</p>
<b>Attachments</b>
<p><a href="http://sanitized-revenge.chal.imaginaryctf.org/">http://sanitized-revenge.chal.imaginaryctf.org/</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<h3 class="text-start">Crypto</h3>
<hr />
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
rsa (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-25" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-25">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">rsa (100 pts) <span class="d-inline-block">- 262 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>I think I did my RSA right...</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/Pg2iM#flag.enc">https://imaginaryctf.org/r/Pg2iM#flag.enc</a>
<a href="https://imaginaryctf.org/r/fpPlb#public.pem">https://imaginaryctf.org/r/fpPlb#public.pem</a>
<a href="https://imaginaryctf.org/r/uwcyX#private.pem">https://imaginaryctf.org/r/uwcyX#private.pem</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
<button type="button" class="btn btn-secondary w-50" data-bs-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
<div class="col-md-6 col-lg-4 mb-3">
<div class="card challenge">
<div class="card-header challenge-header fw-bold">
emoticons (100pts)
</div>
<div class="card-body">
<a class="text-decoration-none view-challenge-btn py-1 px-4" data-bs-toggle="modal" data-bs-target="#challenge-modal-24" href="#">
<i class="fas fa-caret-right"></i> VIEW CHALLENGE <i class="fas fa-caret-left"></i>
</a>
</div>
</div>
</div>
<div class="modal fade" id="challenge-modal-24">
<div class="modal-dialog modal-dialog-centered modal-lg">
<div class="modal-content text-dark">
<div class="modal-header">
<h5 class="modal-title text-center w-100">emoticons (100 pts) <span class="d-inline-block">- 152 solves</span><br /><small class="text-muted">by Eth007</small></h5>
</div>
<div class="modal-body pb-0">
<b>Description</b>
<p>It seems that emoji "crypto" challenges are all the rage nowadays... Well, here's another one for you!</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/54Pne#out.txt">https://imaginaryctf.org/r/54Pne#out.txt</a>
<a href="https://imaginaryctf.org/r/3ZbKK#gen.py">https://imaginaryctf.org/r/3ZbKK#gen.py</a></p>
</div>
<div class="modal-footer">
<div class="text-center w-100">
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signer (100pts)
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<h5 class="modal-title text-center w-100">signer (100 pts) <span class="d-inline-block">- 94 solves</span><br /><small class="text-muted">by Eth007</small></h5>
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<b>Description</b>
<p>My new secure signing service is up! It uses state-of-the-art cryptographically secure hashes and can sign anything! Except, of course, the password.</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/4cONq#main.py">https://imaginaryctf.org/r/4cONq#main.py</a>
<code>nc signer.chal.imaginaryctf.org 1337</code></p>
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Tan (418pts)
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<h5 class="modal-title text-center w-100">Tan (418 pts) <span class="d-inline-block">- 32 solves</span><br /><small class="text-muted">by maple3142</small></h5>
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<b>Description</b>
<p><code>tan(x)</code> is a broken hash function in terms of collision resistance and second preimage resistance. But you surely can't find the preimage of <code>tan(flag)</code>, right?</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/hIdWp#tan.sage">https://imaginaryctf.org/r/hIdWp#tan.sage</a></p>
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Wasteful (423pts)
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<h5 class="modal-title text-center w-100">Wasteful (423 pts) <span class="d-inline-block">- 31 solves</span><br /><small class="text-muted">by maple3142</small></h5>
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<b>Description</b>
<p>I am going to make RSA encryption more time-consuming for no reason 😛</p>
<b>Attachments</b>
<p><a href="https://imaginaryctf.org/r/vqMeh#chall.py">https://imaginaryctf.org/r/vqMeh#chall.py</a>
<a href="https://imaginaryctf.org/r/qoehk#output.txt">https://imaginaryctf.org/r/qoehk#output.txt</a></p>
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