mirror of https://github.com/dirtbags/moth.git
Emergency checkin-building flooded
This commit is contained in:
Neale Pickett
parent
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From: The Dirtbags <zephyr@dirtbags.net>
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To: RECIP
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Subject: WIN BIG AT CAPTURE THE FLAG!!!
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Message-ID: <cG9zdGVyczp4YW5hZC1wb2xveA==@dirtbags.net>
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MIME-Version: 1.0
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Content-type: multipart/alternative; boundary=eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA
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||||||
|
X-Face: '8$#2%$m/.;29z5"5"/
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There are 5 tokens hidden in this message. Can you find them all?
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||||||
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||||||
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--eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA
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||||||
|
Content-type: text/plain; charset=UTF-8
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||||||
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||||||
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CTF starts TOMORROW! Do you have sufficient stores of Mountain Dew?
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This is CMU's first ever CTF, so please be ready for a couple of
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hiccups. Likewise, we expect you to be totally lost for a while, as you
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|
get your bearings. While we tried to cover everything in the
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registration web page, here are some points worth repeating:
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||||||
|
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||||||
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Your machine really ought to have netcat and nmap, and whatever
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programming language(s) you prefer. An Ubuntu live CD has, at past
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contests, not been sufficient. It's also a good idea to make sure your
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computer works before you show up. Time is precious, don't spend yours
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installing an operating system.
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||||||
|
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We will have a switch at each table with gobs of ports, but you should
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bring your own network cable. We will *not* provide an Internet
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||||||
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connection, so figure out now how you're going to get onto the Internet
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(you will need it).
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|
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If you have any questions, or would just like to hang out and shoot the
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breeze, feel free to hop on IRC (server woozle.org, channel #ctf).
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We hope you have as much fun playing this as we're going to have
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watching you work!
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The Dirtbags
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PS: are you aware of how much data can be hidden in a single email?
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--eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA
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Content-type: text/html; charset=UTF-8
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||||||
|
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||||||
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<p>CTF starts TOMORROW! Do you have sufficient stores of Mountain Dew?</p>
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|
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<p>This is CMU's first ever CTF, so please be ready for a couple of
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hiccups. Likewise, we expect you to be totally lost for a while, as you
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||||||
|
get your bearings. While we tried to cover everything in the
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|
registration web page, here are some points worth repeating:</p>
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||||||
|
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||||||
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<p>Your machine really ought to have netcat and nmap, and whatever
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programming language(s) you prefer. An Ubuntu live CD has, at past
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||||||
|
contests, not been sufficient. It's also a good idea to make sure your
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computer works before you show up. Time is precious, don't spend yours
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installing an operating system.</p>
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||||||
|
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<p>We will have a switch at each table with gobs of ports, but you should
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bring your own network cable. We will *not* provide an Internet
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||||||
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connection, so figure out now how you're going to get onto the Internet
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(you will need it).</p>
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||||||
|
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<p>If you have any questions, or would just like to hang out and shoot the
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breeze, feel free to hop on IRC (server woozle.org, channel #ctf).</p>
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|
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<p>We hope you have as much fun playing this as we're going to have
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watching you work!</p>
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<p><a href="http://dirtbags.net/#have_you_examined_the_email_closely?">The Dirtbags</a></p>
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--eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA--
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char *t = (
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"Thank you for helping make Capture The Flag a success! We couldn't"
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"have done it without you."
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"As our way of saying thank you, we humbly offer this image"
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"proclaiming you to be a cool person. Please feel free to print"
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"off a copy of this image and post it in your window, over your"
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"pannier, on your forehead, or wherever else you feel is appropriate."
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"Sincerely,"
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" The Dirtbags"
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);
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#include <stdio.h>
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int main(){char*p=t;while(1){int
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c=getchar();if(EOF==c)break;
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putchar(c^*p);if(!*++p)p=t;}return
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d="M 127.1141,465.5924 C 91.814047,465.5924 66.89506,504.2459 69.859396,529.82972 C 71.761234,546.24359 81.651632,548.75843 96.01098,575.0839 C 104.71039,591.03284 111.56039,612.77438 100.19257,619.35575 C 88.824765,625.93711 53.531251,643.88779 53.53125,643.88779 L 53.53125,731.25 L 228.8265,731.25 C 228.8265,731.25 230.62049,725.86487 229.42387,714.49706 C 243.87007,715.26906 254.19943,715.68227 269.51412,713.28904 C 290.82939,704.65951 302.41803,697.91484 316.18872,691.15976 C 319.30006,687.58786 324.5538,662.43638 323.35717,651.66689 C 322.17857,641.0595 321.01036,622.90838 315.83029,608.07206 C 315.83112,607.62561 315.81244,607.17371 315.77719,606.71802 C 317.90386,598.92728 318.64423,595.20653 320.96769,587.65525 C 323.36091,579.87727 313.19812,579.87221 315.59134,573.88916 C 317.98457,567.9061 319.77015,572.09667 321.56506,555.3441 C 323.35997,538.59153 316.6504,536.93715 312.59122,530.81206 C 313.93239,525.70068 314.54999,522.63654 307.07568,516.5878 C 303.81694,513.9506 301.55946,512.46778 297.4356,512.23126 C 293.31173,511.99474 287.68977,511.89966 279.91179,511.30135 C 279.95788,511.237 279.68945,518.04719 279.8219,518.15083 C 279.59187,518.15083 272.97826,508.24505 268.82685,511.94803 C 264.86347,515.4833 273.24628,527.8739 273.24627,527.59611 C 273.51087,527.66524 264.87102,526.81018 264.1245,530.81206 C 263.39332,534.73169 269.93358,536.10993 269.84182,536.20168 C 269.75006,535.92516 263.79217,535.24252 263.99859,539.96567 C 264.22106,545.05637 272.74333,545.38736 272.74334,545.5438 C 268.67573,555.71281 254.50626,589.03774 244.98208,611.57664 C 247.97361,618.15801 274.90373,620.56376 274.90373,620.56376 C 274.90373,620.56376 277.7599,637.70722 270.70886,644.48516 C 261.13596,645.96638 226.25358,641.8655 203.09971,630.13497 C 183.35561,625.94684 173.54242,629.40149 162.4121,627.13484 C 163.71562,615.17348 164.21749,608.58979 164.21749,608.58979 C 164.21749,608.58979 179.77569,606.19506 179.77569,584.05775 C 179.77569,561.92042 189.27078,560.03657 186.94414,548.16237 C 185.05685,538.53041 181.53399,532.45339 189.1876,524.09495 C 194.98993,515.09543 195.91779,501.48946 187.54152,491.91656 C 175.82743,478.52903 162.41416,465.5924 127.1141,465.5924 z M 283.08108,515.50608 C 282.97494,515.60488 286.88702,515.90504 291.28498,516.19638 C 291.7627,519.41501 296.839,523.95317 299.88712,526.41806 C 299.62647,527.00514 299.35852,527.56957 299.09062,528.13052 L 283.43987,527.85176 C 283.52084,527.66348 282.88447,515.7395 283.08108,515.50608 z M 276.34425,546.61907 C 277.89568,547.38545 280.81962,547.77463 283.05453,548.37477 C 280.15284,549.11714 277.60828,549.09234 277.30649,551.49475 C 276.88402,554.8578 283.91375,557.05322 290.12324,558.85588 C 288.4593,559.44397 285.41576,560.84837 285.28168,562.4898 C 284.86781,567.55673 295.35853,569.71644 304.68278,571.55997 C 305.89074,579.19986 307.54144,589.21622 308.90079,597.08044 C 285.0055,594.98587 270.36389,593.61307 255.48253,597.49196 C 261.78844,582.55106 269.46993,562.86918 276.34425,546.61907 z"
|
||||||
|
style="fill:#000000;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:5;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
|
||||||
|
</g>
|
||||||
|
<text
|
||||||
|
transform="matrix(0.570786,-0.8210989,0.8210989,0.570786,0,0)"
|
||||||
|
sodipodi:linespacing="125%"
|
||||||
|
id="text2678"
|
||||||
|
y="199.4783"
|
||||||
|
x="-109.05233"
|
||||||
|
style="font-size:20px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;text-align:start;line-height:125%;writing-mode:lr-tb;text-anchor:start;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;font-family:URW Palladio L;-inkscape-font-specification:URW Palladio L"
|
||||||
|
xml:space="preserve"><tspan
|
||||||
|
y="199.4783"
|
||||||
|
x="-109.05233"
|
||||||
|
id="tspan2680"
|
||||||
|
sodipodi:role="line">right on!</tspan></text>
|
||||||
|
</g>
|
||||||
|
</g>
|
||||||
|
</svg>
|
||||||
|
After Width: | Height: | Size: 24 KiB |
|
|
@ -0,0 +1 @@
|
||||||
|
andrew.hay@afit.edu
|
||||||
|
|
@ -0,0 +1,163 @@
|
||||||
|
How to create puzzle categories
|
||||||
|
===============================
|
||||||
|
|
||||||
|
The contest has multiple "puzzle" categories. Each category contains a
|
||||||
|
collection of thematically-related puzzles with increasing point
|
||||||
|
values. This document will guide you through the process of creating a
|
||||||
|
new category. It's up to you to make challenging puzzles, though :)
|
||||||
|
|
||||||
|
Since Unix commands are plain text, I'll be using the Unix commands to
|
||||||
|
illustrate steps. These are simple commands that should be easy to
|
||||||
|
translate to a GUI.
|
||||||
|
|
||||||
|
|
||||||
|
Step 1: Establish a progression
|
||||||
|
-------------------------------
|
||||||
|
|
||||||
|
Before you do anything else, you should sit down with a pen and paper,
|
||||||
|
and plan out how you'd like contestants to progress through your
|
||||||
|
category. This contest framework is set up to encourage a linear
|
||||||
|
progression through puzzles, while still allowing contestants to skip
|
||||||
|
over things they get stuck on.
|
||||||
|
|
||||||
|
The net-re category, for instance, features full tutorial pages with
|
||||||
|
simple "end of chapter" type questions for point values 1-8. Point
|
||||||
|
values 10-99 apply the skills learned in the tutorial against
|
||||||
|
increasingly challenging problems, point values 100-999 increasingly
|
||||||
|
approach real-world challenges which use the skills, and point values
|
||||||
|
1000+ are either culled or inspired by actual net-re tasks performed by
|
||||||
|
experts in the field.
|
||||||
|
|
||||||
|
The crypto category uses the previous answers key as part of the
|
||||||
|
solution process for each point value.
|
||||||
|
|
||||||
|
Ideally, your category will work standalone for novices, while allowing
|
||||||
|
experts to quickly answer the training questions and progress to real
|
||||||
|
challenges. Remember that some events don't have a class portion, and
|
||||||
|
even the ones that do have students who prefer to spend the contest time
|
||||||
|
reviewing the exact same problems they did in the class.
|
||||||
|
|
||||||
|
Remember, it's easy to make incredibly challenging puzzles, and you will
|
||||||
|
probably have a lot of ideas about how to do this. What's harder is to
|
||||||
|
make simple puzzles that teach. It can be helpful to imagine a student
|
||||||
|
with a basic skill set. Write your first puzzle for this student to
|
||||||
|
introduce them to the topic and get them thinking about things you
|
||||||
|
believe are important. Guide that student through your tutorial
|
||||||
|
puzzles, until they emerge ready to tackle some non-tutorial problems.
|
||||||
|
As they gain confidence, keep them on their toes with new challenges.
|
||||||
|
Remember to only introduce one new concept for each puzzle!
|
||||||
|
|
||||||
|
Past a certain point, feel free to throw in the killer tricky puzzles
|
||||||
|
you're just dying to create!
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
Step 2: Establish point values
|
||||||
|
------------------------------
|
||||||
|
|
||||||
|
Each of your steps needs a point value. Each point value must be
|
||||||
|
unique: you may not have two 5-point puzzles.
|
||||||
|
|
||||||
|
Point values should roughly reflect how difficult a problem is to solve.
|
||||||
|
It's not terribly important that a 200-point puzzle be ten times harder
|
||||||
|
than a 20-point puzzle, but it is crucial that a 25-point puzzle be
|
||||||
|
roughly as difficult as a 20-point puzzle. Poorly-weighted puzzles has
|
||||||
|
been the main reason students lose interest.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
Step 3: Set up your puzzle structure
|
||||||
|
------------------------------------
|
||||||
|
|
||||||
|
The best way to get puzzles to me is in a zip file of an entire
|
||||||
|
directory. Let's say you are going to create a "sandwich" category.
|
||||||
|
Your first step will be to make a "sandwich" directory somewhere.
|
||||||
|
|
||||||
|
$ mkdir sandwich
|
||||||
|
$ cd sandwich
|
||||||
|
$
|
||||||
|
|
||||||
|
Within your category directory, create subdirectories for each point
|
||||||
|
value puzzle. In the "sandwich" category we have only 5, 10, and
|
||||||
|
100-point puzzles.
|
||||||
|
|
||||||
|
$ mkdir 5 10 100
|
||||||
|
$
|
||||||
|
|
||||||
|
|
||||||
|
Step 4: Write puzzles
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
Now that your skeleton is set up, you can begin to fill it in. In each
|
||||||
|
point-value subdirectory, there can be three special files, and as many
|
||||||
|
downloadable files as you like, in addition to CGI and any downloadable
|
||||||
|
but non-listed files you would like.
|
||||||
|
|
||||||
|
Special files are:
|
||||||
|
|
||||||
|
* index.mdwn: a plain text file formatted with
|
||||||
|
[markdown](http://daringfireball.net/projects/markdown/), displayed
|
||||||
|
before the list of normal files in the puzzle directory.
|
||||||
|
* key: a plain text file with acceptable answers, one per line. Answers
|
||||||
|
are matched exactly (ie. they are case-sensitive).
|
||||||
|
* summary: a single line explaining to contest organizers what's going
|
||||||
|
on in this puzzle.
|
||||||
|
|
||||||
|
All remaining files, except those with filenames beginning with a comma
|
||||||
|
(","), are listed on the puzzle page for download.
|
||||||
|
|
||||||
|
Any file ending with ".cgi" will be run as CGI. You can search the web
|
||||||
|
for how to write a CGI. Available languages are Python, Lua, and Bourne
|
||||||
|
Shell.
|
||||||
|
|
||||||
|
Let's make our 5-point sandwich question!
|
||||||
|
|
||||||
|
$ cd 5
|
||||||
|
$ cat <<EOD >index.mdwn
|
||||||
|
> Welcome to the Sandwich category!
|
||||||
|
> In this category you will learn how to make a tasty sandwich.
|
||||||
|
> The key ingredients in a sandwich are: bread, spread, and filling.
|
||||||
|
> When making a sandwich, you need to first put down one slice of bread,
|
||||||
|
> then apply any spreads, and finally add filling. Popular fillings
|
||||||
|
> include cheese, sprouts, and cold cuts. When you are done, apply
|
||||||
|
> another slice of bread on top, and optionally tie it together with
|
||||||
|
> a fancy toothpick.
|
||||||
|
>
|
||||||
|
> Now that you know the basics of sandwich-making, it's time for a
|
||||||
|
> question! How many slices of bread are in a sandwich?
|
||||||
|
> EOD
|
||||||
|
$ cat <<EOD >key
|
||||||
|
> 2
|
||||||
|
> TWO
|
||||||
|
> two
|
||||||
|
> EOD
|
||||||
|
$ echo "How many slices of bread in a sandwich" > summary
|
||||||
|
$
|
||||||
|
|
||||||
|
If you wanted to provide a PDF of various sandwiches, this would be the
|
||||||
|
time to add that too:
|
||||||
|
|
||||||
|
$ cp /tmp/sandwich-types.pdf .
|
||||||
|
$
|
||||||
|
|
||||||
|
In a real category, you might provide an executable, hard drive image,
|
||||||
|
or some other kind of blob.
|
||||||
|
|
||||||
|
No additional work is needed to have `sandwich-types.pdf` show up as a
|
||||||
|
download on the puzzle page.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
Step 5: Package it up
|
||||||
|
---------------------
|
||||||
|
|
||||||
|
After you've flushed out all your point-value directories, it's time to
|
||||||
|
wrap it up and send it in. Clean out any backup or temporary files you
|
||||||
|
or your editor might have written in the directories, and zip the sucker
|
||||||
|
up.
|
||||||
|
|
||||||
|
$ cd ../..
|
||||||
|
$ zip -r sandwich.zip sandwich/
|
||||||
|
$
|
||||||
|
|
||||||
|
Now mail the zip file in, and you're all done!
|
||||||
|
|
@ -61,6 +61,67 @@ arc4_hash(uint8_t const *buf, size_t buflen,
|
||||||
|
|
||||||
arc4_init(&ctx, buf, buflen);
|
arc4_init(&ctx, buf, buflen);
|
||||||
for (i = 0; i < ARC4_HASHLEN; i += 1) {
|
for (i = 0; i < ARC4_HASHLEN; i += 1) {
|
||||||
hash[i] = arc4_pad(&ctx);
|
hash[i] = arc4_out(&ctx);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#ifdef ARC4_MAIN
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <sysexits.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
int
|
||||||
|
main(int argc, char *argv[])
|
||||||
|
{
|
||||||
|
struct arc4_ctx ctx;
|
||||||
|
|
||||||
|
/* Read key and initialize context */
|
||||||
|
{
|
||||||
|
uint8_t key[256];
|
||||||
|
size_t keylen = 0;
|
||||||
|
char *ekey = getenv("KEY");
|
||||||
|
FILE *f;
|
||||||
|
|
||||||
|
if (argc == 2) {
|
||||||
|
if (! (f = fopen(argv[1], "r"))) {
|
||||||
|
perror(argv[0]);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
f = fdopen(3, "r");
|
||||||
|
}
|
||||||
|
|
||||||
|
if (f) {
|
||||||
|
keylen = fread(key, 1, sizeof(key), f);
|
||||||
|
fclose(f);
|
||||||
|
} else if (ekey) {
|
||||||
|
keylen = strlen(ekey);
|
||||||
|
if (keylen > sizeof(key)) {
|
||||||
|
keylen = sizeof(key);
|
||||||
|
}
|
||||||
|
memcpy(key, ekey, keylen);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (0 == keylen) {
|
||||||
|
fprintf(stderr, "Usage: %s [KEYFILE] <PLAINTEXT\n", argv[0]);
|
||||||
|
fprintf(stderr, "\n");
|
||||||
|
fprintf(stderr, "You can also pass in the key on fd 3 or in\n");
|
||||||
|
fprintf(stderr, "$KEY; omit KEYFILE in this case.\n");
|
||||||
|
return EX_IOERR;
|
||||||
|
}
|
||||||
|
arc4_init(&ctx, key, (size_t)keylen);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Encrypt */
|
||||||
|
while (1) {
|
||||||
|
int c = getchar();
|
||||||
|
|
||||||
|
if (EOF == c) break;
|
||||||
|
putchar(c ^ arc4_out(&ctx));
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* ARC4_MAIN */
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,20 @@
|
||||||
|
CTFBASE_PKGDIR = $(TARGET)/ctfbase
|
||||||
|
|
||||||
|
ctfbase-install: ctfbase-build
|
||||||
|
mkdir -p $(CTFBASE_PKGDIR)/bin/
|
||||||
|
|
||||||
|
$(call COPYTREE, packages/ctfbase/service, $(CTFBASE_PKGDIR)/service)
|
||||||
|
|
||||||
|
cp packages/ctfbase/setup $(CTFBASE_PKGDIR)/
|
||||||
|
|
||||||
|
cp packages/ctfbase/src/tokencli $(CTFBASE_PKGDIR)/bin/
|
||||||
|
cp packages/ctfbase/src/arc4 $(CTFBASE_PKGDIR)/bin/
|
||||||
|
|
||||||
|
ctfbase-clean:
|
||||||
|
rm -rf $(CTFBASE_PKGDIR)
|
||||||
|
$(MAKE) -C packages/ctfbase/src clean
|
||||||
|
|
||||||
|
ctfbase-build:
|
||||||
|
$(MAKE) -C packages/ctfbase/src build
|
||||||
|
|
||||||
|
PACKAGES += ctfbase
|
||||||
|
|
@ -0,0 +1,12 @@
|
||||||
|
#! /bin/sh -e
|
||||||
|
|
||||||
|
exec 2>&1
|
||||||
|
|
||||||
|
# Set up networking for all CTF packages
|
||||||
|
ip link set eth0 up
|
||||||
|
if ! ip route | grep -q default; then
|
||||||
|
ip route add default via 10.0.0.1 || exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
install -o root -m 0755 -d /var/lib/ctf/tokens
|
||||||
|
exec ./update-tokens
|
||||||
|
|
@ -1,6 +1,7 @@
|
||||||
build: tokencli arc4
|
build: tokencli arc4
|
||||||
|
|
||||||
arc4: arc4.o arc4-main.o
|
arc4: arc4.c
|
||||||
|
$(CC) $(CFLAGS) $(LDFLAGS) -DARC4_MAIN -o $@ $<
|
||||||
|
|
||||||
tokencli: tokencli.o arc4.o
|
tokencli: tokencli.o arc4.o
|
||||||
|
|
||||||
|
|
@ -1,4 +1,6 @@
|
||||||
#! /bin/sh
|
#! /bin/sh -e
|
||||||
|
|
||||||
exec 2>&1
|
exec 2>&1
|
||||||
exec tcpsvd 0 4104 /opt/logger/bin/logger
|
IP=$(cat ip.txt)
|
||||||
|
ip addr add $IP dev eth0
|
||||||
|
exec tcpsvd ${IP#/*} 1958 /opt/logger/bin/logger
|
||||||
|
|
|
||||||
|
|
@ -1,10 +1,35 @@
|
||||||
#include <sys/select.h>
|
/** logger.c - generate fake log messages (part of dirtbags CTF)
|
||||||
|
*
|
||||||
|
* Author: Neale Pickett <neale@lanl.gov>
|
||||||
|
*
|
||||||
|
* This software has been authored by an employee or employees of Los
|
||||||
|
* Alamos National Security, LLC, operator of the Los Alamos National
|
||||||
|
* Laboratory (LANL) under Contract No. DE-AC52-06NA25396 with the
|
||||||
|
* U.S. Department of Energy. The U.S. Government has rights to use,
|
||||||
|
* reproduce, and distribute this software. The public may copy,
|
||||||
|
* distribute, prepare derivative works and publicly display this
|
||||||
|
* software without charge, provided that this Notice and any statement
|
||||||
|
* of authorship are reproduced on all copies. Neither the Government
|
||||||
|
* nor LANS makes any warranty, express or implied, or assumes any
|
||||||
|
* liability or responsibility for the use of this software. If
|
||||||
|
* software is modified to produce derivative works, such modified
|
||||||
|
* software should be clearly marked, so as not to confuse it with the
|
||||||
|
* version available from LANL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
#include <time.h>
|
#include <time.h>
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
#include <stdio.h>
|
#include <stdio.h>
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
#include <string.h>
|
#include <string.h>
|
||||||
#include "token.h"
|
|
||||||
|
#ifdef STANDALONE
|
||||||
|
# define TOKEN_MAX 50
|
||||||
|
#else
|
||||||
|
# include "token.h"
|
||||||
|
# include "arc4.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
#define PID_MAX 32768
|
#define PID_MAX 32768
|
||||||
#define QSIZE 200
|
#define QSIZE 200
|
||||||
|
|
@ -27,12 +52,16 @@ read_tokens()
|
||||||
char name[40];
|
char name[40];
|
||||||
|
|
||||||
for (i = 0; i < sizeof(token)/sizeof(*token); i += 1) {
|
for (i = 0; i < sizeof(token)/sizeof(*token); i += 1) {
|
||||||
|
#ifdef STANDALONE
|
||||||
|
strcpy(token[i], "logger:xylep-donut-nanox");
|
||||||
|
#else
|
||||||
/* This can't grow beyond 40. Think about it. */
|
/* This can't grow beyond 40. Think about it. */
|
||||||
sprintf(name, "logger%d", i);
|
sprintf(name, "logger%d", i);
|
||||||
|
|
||||||
len = read_token(name, key, sizeof(key), token[i], sizeof(token[i]));
|
len = read_token(name, key, sizeof(key), token[i], sizeof(token[i]));
|
||||||
if ((-1 == len) || (len >= sizeof(token[i]))) abort();
|
if ((-1 == len) || (len >= sizeof(token[i]))) abort();
|
||||||
token[i][len] = '\0';
|
token[i][len] = '\0';
|
||||||
|
#endif
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,8 +0,0 @@
|
||||||
#! /bin/sh -e
|
|
||||||
|
|
||||||
hostname mcp
|
|
||||||
|
|
||||||
ifconfig eth0 10.0.0.2 netmask 255.255.0.0
|
|
||||||
route add default gw 10.0.0.1
|
|
||||||
|
|
||||||
exec inotifyd true $(pwd):x
|
|
||||||
|
|
@ -41,6 +41,8 @@ Control {
|
||||||
}
|
}
|
||||||
|
|
||||||
Server {
|
Server {
|
||||||
|
Address 10.0.0.2
|
||||||
|
|
||||||
Virtual {
|
Virtual {
|
||||||
AnyHost
|
AnyHost
|
||||||
Control {
|
Control {
|
||||||
|
|
|
||||||
|
|
@ -2,6 +2,8 @@
|
||||||
|
|
||||||
exec 2>&1
|
exec 2>&1
|
||||||
|
|
||||||
|
ip addr add 10.0.0.2/24 dev eth0
|
||||||
|
|
||||||
DB=/var/lib/ctf/tokens.db
|
DB=/var/lib/ctf/tokens.db
|
||||||
|
|
||||||
if [ ! -f $DB ]; then
|
if [ ! -f $DB ]; then
|
||||||
|
|
|
||||||
|
|
@ -1,13 +1,13 @@
|
||||||
CFLAGS = -Wall -Werror
|
CFLAGS = -Wall -Werror
|
||||||
TARGETS = in.tokend tokencli claim.cgi
|
TARGETS = in.tokend claim.cgi
|
||||||
TARGETS += puzzler.cgi puzzles.cgi
|
TARGETS += puzzler.cgi puzzles.cgi
|
||||||
TARGETS += pointscli mktoken arc4
|
TARGETS += pointscli mktoken
|
||||||
|
|
||||||
all: build
|
all: build
|
||||||
|
|
||||||
build: $(TARGETS)
|
build: $(TARGETS)
|
||||||
|
|
||||||
in.tokend: in.tokend.o arc4.o common.o
|
in.tokend: in.tokend.o arc4.o md5.o common.o
|
||||||
tokencli: tokencli.o arc4.o
|
tokencli: tokencli.o arc4.o
|
||||||
pointscli: pointscli.o common.o
|
pointscli: pointscli.o common.o
|
||||||
mktoken: mktoken.o common.o
|
mktoken: mktoken.o common.o
|
||||||
|
|
|
||||||
|
|
@ -1 +0,0 @@
|
||||||
../../tokens/src/arc4-main.c
|
|
||||||
|
|
@ -14,6 +14,7 @@
|
||||||
#include <dirent.h>
|
#include <dirent.h>
|
||||||
#include "common.h"
|
#include "common.h"
|
||||||
#include "arc4.h"
|
#include "arc4.h"
|
||||||
|
#include "md5.h"
|
||||||
|
|
||||||
void
|
void
|
||||||
list_teams()
|
list_teams()
|
||||||
|
|
@ -28,14 +29,11 @@ list_teams()
|
||||||
|
|
||||||
if ((0 == stat(state_path("teams/names/%s", ent->d_name), &buf)) &&
|
if ((0 == stat(state_path("teams/names/%s", ent->d_name), &buf)) &&
|
||||||
(S_ISREG(buf.st_mode))) {
|
(S_ISREG(buf.st_mode))) {
|
||||||
uint8_t hash[ARC4_HASHLEN];
|
char digest[MD5_HEXDIGEST_LEN + 1];
|
||||||
int i;
|
|
||||||
|
|
||||||
arc4_hash((uint8_t *)ent->d_name, strlen(ent->d_name), hash);
|
md5_hexdigest((uint8_t *)ent->d_name, strlen(ent->d_name), digest);
|
||||||
for (i=0; i < ARC4_HASHLEN; i += 1) {
|
digest[MD5_HEXDIGEST_LEN] = '\n';
|
||||||
printf("%02x", hash[i]);
|
write(1, digest, sizeof(digest));
|
||||||
}
|
|
||||||
printf("\n");
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
closedir(dir);
|
closedir(dir);
|
||||||
|
|
|
||||||
|
|
@ -1 +0,0 @@
|
||||||
../../tokens/src/tokencli.c
|
|
||||||
|
|
@ -1,4 +1,6 @@
|
||||||
#! /bin/sh
|
#! /bin/sh -e
|
||||||
|
|
||||||
exec 2>&1
|
exec 2>&1
|
||||||
exec /opt/octopus/bin/octopus
|
IP=$(cat ip.txt)
|
||||||
|
ip addr add $IP dev eth0
|
||||||
|
exec /opt/octopus/bin/octopus ${IP%/*}
|
||||||
|
|
|
||||||
|
|
@ -194,17 +194,17 @@ struct bound_port {
|
||||||
} bound_ports[PORTS];
|
} bound_ports[PORTS];
|
||||||
|
|
||||||
int
|
int
|
||||||
bind_port(int fd, uint16_t port) {
|
bind_port(struct in_addr *addr, int fd, uint16_t port) {
|
||||||
struct sockaddr_in addr;
|
struct sockaddr_in addr;
|
||||||
|
|
||||||
addr.sin_family = AF_INET;
|
addr.sin_family = AF_INET;
|
||||||
addr.sin_port = htons(port);
|
addr.sin_port = htons(port);
|
||||||
addr.sin_addr.s_addr = INADDR_ANY;
|
addr.sin_addr.s_addr = *addr;
|
||||||
return bind(fd, (struct sockaddr *)&addr, sizeof(addr));
|
return bind(fd, (struct sockaddr *)&addr, sizeof(addr));
|
||||||
}
|
}
|
||||||
|
|
||||||
int
|
int
|
||||||
rebind()
|
rebind(struct in_addr *addr)
|
||||||
{
|
{
|
||||||
static int offset = 0;
|
static int offset = 0;
|
||||||
char token[200];
|
char token[200];
|
||||||
|
|
@ -235,7 +235,7 @@ rebind()
|
||||||
bound_ports[i + offset].fd = socket(PF_INET, SOCK_DGRAM, 0);
|
bound_ports[i + offset].fd = socket(PF_INET, SOCK_DGRAM, 0);
|
||||||
do {
|
do {
|
||||||
port = (random() % 56635) + 10000;
|
port = (random() % 56635) + 10000;
|
||||||
ret = bind_port(bound_ports[i + offset].fd, port);
|
ret = bind_port(addr, bound_ports[i + offset].fd, port);
|
||||||
} while (-1 == ret);
|
} while (-1 == ret);
|
||||||
|
|
||||||
/* Set the last guy's port number */
|
/* Set the last guy's port number */
|
||||||
|
|
@ -340,12 +340,22 @@ main(int argc, char *argv[])
|
||||||
int ret;
|
int ret;
|
||||||
int i;
|
int i;
|
||||||
time_t last = time(NULL);
|
time_t last = time(NULL);
|
||||||
|
struct in_addr addr;
|
||||||
|
|
||||||
/* The random seed isn't super important here. */
|
/* The random seed isn't super important here. */
|
||||||
srand(8);
|
srand(last);
|
||||||
|
|
||||||
|
if (argc > 1) {
|
||||||
|
if (-1 == inet_aton(argv[1], &addr)) {
|
||||||
|
fprintf(stderr, "invalid address: %s\n", argv[1]);
|
||||||
|
return EX_IOERR;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
addr = INADDR_ANY;
|
||||||
|
}
|
||||||
|
|
||||||
bound_ports[0].fd = socket(PF_INET, SOCK_DGRAM, 0);
|
bound_ports[0].fd = socket(PF_INET, SOCK_DGRAM, 0);
|
||||||
ret = bind_port(bound_ports[0].fd, 8888);
|
ret = bind_port(&addr, bound_ports[0].fd, 8888);
|
||||||
if (-1 == ret) {
|
if (-1 == ret) {
|
||||||
perror("bind port 8888");
|
perror("bind port 8888");
|
||||||
return EX_IOERR;
|
return EX_IOERR;
|
||||||
|
|
@ -354,7 +364,7 @@ main(int argc, char *argv[])
|
||||||
for (i = 1; i < PORTS; i += 1) {
|
for (i = 1; i < PORTS; i += 1) {
|
||||||
bound_ports[i].fd = -1;
|
bound_ports[i].fd = -1;
|
||||||
}
|
}
|
||||||
if (-1 == rebind()) {
|
if (-1 == rebind(&addr)) {
|
||||||
perror("initial binding");
|
perror("initial binding");
|
||||||
return EX_IOERR;
|
return EX_IOERR;
|
||||||
}
|
}
|
||||||
|
|
@ -364,7 +374,7 @@ main(int argc, char *argv[])
|
||||||
|
|
||||||
if (last + 4 < now) {
|
if (last + 4 < now) {
|
||||||
last = now;
|
last = now;
|
||||||
if (-1 == rebind()) break;
|
if (-1 == rebind(&addr)) break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -1,11 +1,14 @@
|
||||||
#! /bin/sh
|
#! /bin/sh -e
|
||||||
|
|
||||||
exec 2>&1
|
exec 2>&1
|
||||||
|
|
||||||
|
IP=$(cat ip.txt)
|
||||||
|
ip addr add $IP dev eth0
|
||||||
|
|
||||||
# So I say to him, "Alex, what's a good high port number for a CTF category?"
|
# So I say to him, "Alex, what's a good high port number for a CTF category?"
|
||||||
# And he says, "6"
|
# And he says, "6"
|
||||||
# And I say, "no, it has to be bigger than 1000"
|
# And I say, "no, it has to be bigger than 1000"
|
||||||
# And he says, "how about 9001, because that's bigger than 9000"
|
# And he says, "how about 9001, because that's bigger than 9000"
|
||||||
# So, okay.
|
# Okay.
|
||||||
|
|
||||||
exec tcpsvd 0 9001 ./run-printf
|
exec tcpsvd ${IP#/*} 9001 ./run-printf
|
||||||
|
|
|
||||||
|
|
@ -1,11 +0,0 @@
|
||||||
#! /bin/sh
|
|
||||||
|
|
||||||
if [ -d /opt/mcp ]; then
|
|
||||||
sv d .
|
|
||||||
exit
|
|
||||||
fi
|
|
||||||
|
|
||||||
hostname pwnables
|
|
||||||
ifconfig eth0 10.0.0.10 netmask 255.255.0.0
|
|
||||||
route add default gw 10.0.0.1
|
|
||||||
exec inotifyd true $(pwd):x
|
|
||||||
|
|
@ -1,5 +1,9 @@
|
||||||
#! /bin/sh -e
|
#! /bin/sh -e
|
||||||
|
|
||||||
|
# Configure IP address
|
||||||
|
IP=$(cat ip.txt)
|
||||||
|
ip addr add $IP dev eth0
|
||||||
|
|
||||||
# Set up chroot environment
|
# Set up chroot environment
|
||||||
# We never umount any of this since it's all just in RAM
|
# We never umount any of this since it's all just in RAM
|
||||||
mkdir -p /mnt/pwnables-root
|
mkdir -p /mnt/pwnables-root
|
||||||
|
|
|
||||||
|
|
@ -1,3 +0,0 @@
|
||||||
#! /bin/sh
|
|
||||||
|
|
||||||
exec logger -t sshd
|
|
||||||
Binary file not shown.
|
|
@ -1,10 +0,0 @@
|
||||||
#! /bin/sh
|
|
||||||
|
|
||||||
exec 2>&1
|
|
||||||
|
|
||||||
if [ -d /opt/mcp ]; then
|
|
||||||
sv d .
|
|
||||||
exit
|
|
||||||
fi
|
|
||||||
|
|
||||||
exec dropbear -r ./rsa.key -E -F
|
|
||||||
|
|
@ -1,5 +0,0 @@
|
||||||
#! /bin/sh
|
|
||||||
|
|
||||||
exec 2>&1
|
|
||||||
install -o root -m 0755 -d /var/lib/ctf/tokens
|
|
||||||
exec ./tokens
|
|
||||||
|
|
@ -1,4 +0,0 @@
|
||||||
#! /bin/sh
|
|
||||||
|
|
||||||
cp -r service/* /var/service
|
|
||||||
mkdir -p /var/lib/ctf/tokens
|
|
||||||
|
|
@ -1,58 +0,0 @@
|
||||||
#include <stdint.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <sysexits.h>
|
|
||||||
#include "arc4.h"
|
|
||||||
|
|
||||||
int
|
|
||||||
main(int argc, char *argv[])
|
|
||||||
{
|
|
||||||
struct arc4_ctx ctx;
|
|
||||||
|
|
||||||
/* Read key and initialize context */
|
|
||||||
{
|
|
||||||
uint8_t key[256];
|
|
||||||
size_t keylen = 0;
|
|
||||||
char *ekey = getenv("KEY");
|
|
||||||
FILE *f;
|
|
||||||
|
|
||||||
if (argc == 2) {
|
|
||||||
if (! (f = fopen(argv[1], "r"))) {
|
|
||||||
perror(argv[0]);
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
f = fdopen(3, "r");
|
|
||||||
}
|
|
||||||
|
|
||||||
if (f) {
|
|
||||||
keylen = fread(key, 1, sizeof(key), f);
|
|
||||||
fclose(f);
|
|
||||||
} else if (ekey) {
|
|
||||||
keylen = strlen(ekey);
|
|
||||||
if (keylen > sizeof(key)) {
|
|
||||||
keylen = sizeof(key);
|
|
||||||
}
|
|
||||||
memcpy(key, ekey, keylen);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (0 == keylen) {
|
|
||||||
fprintf(stderr, "Usage: %s [KEYFILE] <PLAINTEXT\n", argv[0]);
|
|
||||||
fprintf(stderr, "\n");
|
|
||||||
fprintf(stderr, "You can also pass in the key on fd 3 or in\n");
|
|
||||||
fprintf(stderr, "$KEY; omit KEYFILE in this case.\n");
|
|
||||||
return EX_IOERR;
|
|
||||||
}
|
|
||||||
arc4_init(&ctx, key, (size_t)keylen);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Encrypt */
|
|
||||||
while (1) {
|
|
||||||
int c = getchar();
|
|
||||||
|
|
||||||
if (EOF == c) break;
|
|
||||||
putchar(c ^ arc4_pad(&ctx));
|
|
||||||
}
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
@ -1,20 +0,0 @@
|
||||||
TOKENS_PKGDIR = $(TARGET)/tokens
|
|
||||||
|
|
||||||
tokens-install: tokens-build
|
|
||||||
mkdir -p $(TOKENS_PKGDIR)/bin/
|
|
||||||
|
|
||||||
$(call COPYTREE, packages/tokens/service, $(TOKENS_PKGDIR)/service)
|
|
||||||
|
|
||||||
cp packages/tokens/setup $(TOKENS_PKGDIR)/
|
|
||||||
|
|
||||||
cp packages/tokens/src/tokencli $(TOKENS_PKGDIR)/bin/
|
|
||||||
cp packages/tokens/src/arc4 $(TOKENS_PKGDIR)/bin/
|
|
||||||
|
|
||||||
tokens-clean:
|
|
||||||
rm -rf $(TOKENS_PKGDIR)
|
|
||||||
$(MAKE) -C packages/tokens/src clean
|
|
||||||
|
|
||||||
tokens-build:
|
|
||||||
$(MAKE) -C packages/tokens/src build
|
|
||||||
|
|
||||||
PACKAGES += tokens
|
|
||||||
Loading…
Reference in New Issue