mirror of https://github.com/dirtbags/moth.git
Emergency checkin-building flooded
This commit is contained in:
Neale Pickett
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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>
|
||||
MIME-Version: 1.0
|
||||
Content-type: multipart/alternative; boundary=eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA
|
||||
X-Face: '8$#2%$m/.;29z5"5"/
|
||||
|
||||
There are 5 tokens hidden in this message. Can you find them all?
|
||||
|
||||
--eJwryC8uSS0qtqpIzc1P1i3OT86vAABObgfA
|
||||
Content-type: text/plain; charset=UTF-8
|
||||
|
||||
CTF starts TOMORROW! Do you have sufficient stores of Mountain Dew?
|
||||
|
||||
This is CMU's first ever CTF, so please be ready for a couple of
|
||||
hiccups. Likewise, we expect you to be totally lost for a while, as you
|
||||
get your bearings. While we tried to cover everything in the
|
||||
registration web page, here are some points worth repeating:
|
||||
|
||||
Your machine really ought to have netcat and nmap, and whatever
|
||||
programming language(s) you prefer. An Ubuntu live CD has, at past
|
||||
contests, not been sufficient. It's also a good idea to make sure your
|
||||
computer works before you show up. Time is precious, don't spend yours
|
||||
installing an operating system.
|
||||
|
||||
We will have a switch at each table with gobs of ports, but you should
|
||||
bring your own network cable. We will *not* provide an Internet
|
||||
connection, so figure out now how you're going to get onto the Internet
|
||||
(you will need it).
|
||||
|
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If you have any questions, or would just like to hang out and shoot the
|
||||
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
|
||||
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
|
||||
Content-type: text/html; charset=UTF-8
|
||||
|
||||
<p>CTF starts TOMORROW! Do you have sufficient stores of Mountain Dew?</p>
|
||||
|
||||
<p>This is CMU's first ever CTF, so please be ready for a couple of
|
||||
hiccups. Likewise, we expect you to be totally lost for a while, as you
|
||||
get your bearings. While we tried to cover everything in the
|
||||
registration web page, here are some points worth repeating:</p>
|
||||
|
||||
<p>Your machine really ought to have netcat and nmap, and whatever
|
||||
programming language(s) you prefer. An Ubuntu live CD has, at past
|
||||
contests, not been sufficient. It's also a good idea to make sure your
|
||||
computer works before you show up. Time is precious, don't spend yours
|
||||
installing an operating system.</p>
|
||||
|
||||
<p>We will have a switch at each table with gobs of ports, but you should
|
||||
bring your own network cable. We will *not* provide an Internet
|
||||
connection, so figure out now how you're going to get onto the Internet
|
||||
(you will need it).</p>
|
||||
|
||||
<p>If you have any questions, or would just like to hang out and shoot the
|
||||
breeze, feel free to hop on IRC (server woozle.org, channel #ctf).</p>
|
||||
|
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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"
|
||||
"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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After Width: | Height: | Size: 24 KiB |
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@ -0,0 +1 @@
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andrew.hay@afit.edu
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|
|
@ -0,0 +1,163 @@
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|||
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);
|
||||
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
|
||||
|
||||
arc4: arc4.o arc4-main.o
|
||||
arc4: arc4.c
|
||||
$(CC) $(CFLAGS) $(LDFLAGS) -DARC4_MAIN -o $@ $<
|
||||
|
||||
tokencli: tokencli.o arc4.o
|
||||
|
||||
|
|
@ -1,4 +1,6 @@
|
|||
#! /bin/sh
|
||||
#! /bin/sh -e
|
||||
|
||||
exec 2>&1
|
||||
exec tcpsvd 0 4104 /opt/logger/bin/logger
|
||||
IP=$(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 <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
|
||||
#ifdef STANDALONE
|
||||
# define TOKEN_MAX 50
|
||||
#else
|
||||
# include "token.h"
|
||||
# include "arc4.h"
|
||||
#endif
|
||||
|
||||
#define PID_MAX 32768
|
||||
#define QSIZE 200
|
||||
|
|
@ -27,12 +52,16 @@ read_tokens()
|
|||
char name[40];
|
||||
|
||||
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. */
|
||||
sprintf(name, "logger%d", i);
|
||||
|
||||
len = read_token(name, key, sizeof(key), token[i], sizeof(token[i]));
|
||||
if ((-1 == len) || (len >= sizeof(token[i]))) abort();
|
||||
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 {
|
||||
Address 10.0.0.2
|
||||
|
||||
Virtual {
|
||||
AnyHost
|
||||
Control {
|
||||
|
|
|
|||
|
|
@ -2,6 +2,8 @@
|
|||
|
||||
exec 2>&1
|
||||
|
||||
ip addr add 10.0.0.2/24 dev eth0
|
||||
|
||||
DB=/var/lib/ctf/tokens.db
|
||||
|
||||
if [ ! -f $DB ]; then
|
||||
|
|
|
|||
|
|
@ -1,13 +1,13 @@
|
|||
CFLAGS = -Wall -Werror
|
||||
TARGETS = in.tokend tokencli claim.cgi
|
||||
TARGETS = in.tokend claim.cgi
|
||||
TARGETS += puzzler.cgi puzzles.cgi
|
||||
TARGETS += pointscli mktoken arc4
|
||||
TARGETS += pointscli mktoken
|
||||
|
||||
all: build
|
||||
|
||||
build: $(TARGETS)
|
||||
|
||||
in.tokend: in.tokend.o arc4.o common.o
|
||||
in.tokend: in.tokend.o arc4.o md5.o common.o
|
||||
tokencli: tokencli.o arc4.o
|
||||
pointscli: pointscli.o common.o
|
||||
mktoken: mktoken.o common.o
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
../../tokens/src/arc4-main.c
|
||||
|
|
@ -14,6 +14,7 @@
|
|||
#include <dirent.h>
|
||||
#include "common.h"
|
||||
#include "arc4.h"
|
||||
#include "md5.h"
|
||||
|
||||
void
|
||||
list_teams()
|
||||
|
|
@ -28,14 +29,11 @@ list_teams()
|
|||
|
||||
if ((0 == stat(state_path("teams/names/%s", ent->d_name), &buf)) &&
|
||||
(S_ISREG(buf.st_mode))) {
|
||||
uint8_t hash[ARC4_HASHLEN];
|
||||
int i;
|
||||
char digest[MD5_HEXDIGEST_LEN + 1];
|
||||
|
||||
arc4_hash((uint8_t *)ent->d_name, strlen(ent->d_name), hash);
|
||||
for (i=0; i < ARC4_HASHLEN; i += 1) {
|
||||
printf("%02x", hash[i]);
|
||||
}
|
||||
printf("\n");
|
||||
md5_hexdigest((uint8_t *)ent->d_name, strlen(ent->d_name), digest);
|
||||
digest[MD5_HEXDIGEST_LEN] = '\n';
|
||||
write(1, digest, sizeof(digest));
|
||||
}
|
||||
}
|
||||
closedir(dir);
|
||||
|
|
|
|||
|
|
@ -1 +0,0 @@
|
|||
../../tokens/src/tokencli.c
|
||||
|
|
@ -1,4 +1,6 @@
|
|||
#! /bin/sh
|
||||
#! /bin/sh -e
|
||||
|
||||
exec 2>&1
|
||||
exec /opt/octopus/bin/octopus
|
||||
IP=$(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];
|
||||
|
||||
int
|
||||
bind_port(int fd, uint16_t port) {
|
||||
bind_port(struct in_addr *addr, int fd, uint16_t port) {
|
||||
struct sockaddr_in addr;
|
||||
|
||||
addr.sin_family = AF_INET;
|
||||
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));
|
||||
}
|
||||
|
||||
int
|
||||
rebind()
|
||||
rebind(struct in_addr *addr)
|
||||
{
|
||||
static int offset = 0;
|
||||
char token[200];
|
||||
|
|
@ -235,7 +235,7 @@ rebind()
|
|||
bound_ports[i + offset].fd = socket(PF_INET, SOCK_DGRAM, 0);
|
||||
do {
|
||||
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);
|
||||
|
||||
/* Set the last guy's port number */
|
||||
|
|
@ -340,12 +340,22 @@ main(int argc, char *argv[])
|
|||
int ret;
|
||||
int i;
|
||||
time_t last = time(NULL);
|
||||
struct in_addr addr;
|
||||
|
||||
/* 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);
|
||||
ret = bind_port(bound_ports[0].fd, 8888);
|
||||
ret = bind_port(&addr, bound_ports[0].fd, 8888);
|
||||
if (-1 == ret) {
|
||||
perror("bind port 8888");
|
||||
return EX_IOERR;
|
||||
|
|
@ -354,7 +364,7 @@ main(int argc, char *argv[])
|
|||
for (i = 1; i < PORTS; i += 1) {
|
||||
bound_ports[i].fd = -1;
|
||||
}
|
||||
if (-1 == rebind()) {
|
||||
if (-1 == rebind(&addr)) {
|
||||
perror("initial binding");
|
||||
return EX_IOERR;
|
||||
}
|
||||
|
|
@ -364,7 +374,7 @@ main(int argc, char *argv[])
|
|||
|
||||
if (last + 4 < now) {
|
||||
last = now;
|
||||
if (-1 == rebind()) break;
|
||||
if (-1 == rebind(&addr)) break;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,11 +1,14 @@
|
|||
#! /bin/sh
|
||||
#! /bin/sh -e
|
||||
|
||||
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?"
|
||||
# And he says, "6"
|
||||
# And I say, "no, it has to be bigger than 1000"
|
||||
# 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 $(pwd):x
|
||||
|
|
@ -1,5 +1,9 @@
|
|||
#! /bin/sh -e
|
||||
|
||||
# Configure IP address
|
||||
IP=$(cat ip.txt)
|
||||
ip addr add $IP dev eth0
|
||||
|
||||
# Set up chroot environment
|
||||
# We never umount any of this since it's all just in RAM
|
||||
mkdir -p /mnt/pwnables-root
|
||||
|
|
|
|||
|
|
@ -1,3 +0,0 @@
|
|||
#! /bin/sh
|
||||
|
||||
exec logger -t sshd
|
||||
Binary file not shown.
|
|
@ -1,10 +0,0 @@
|
|||
#! /bin/sh
|
||||
|
||||
exec 2>&1
|
||||
|
||||
if [ -d /opt/mcp ]; then
|
||||
sv d .
|
||||
exit
|
||||
fi
|
||||
|
||||
exec dropbear -r ./rsa.key -E -F
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
#! /bin/sh
|
||||
|
||||
exec 2>&1
|
||||
install -o root -m 0755 -d /var/lib/ctf/tokens
|
||||
exec ./tokens
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
#! /bin/sh
|
||||
|
||||
cp -r service/* /var/service
|
||||
mkdir -p /var/lib/ctf/tokens
|
||||
|
|
@ -1,58 +0,0 @@
|
|||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <sysexits.h>
|
||||
#include "arc4.h"
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
struct arc4_ctx ctx;
|
||||
|
||||
/* Read key and initialize context */
|
||||
{
|
||||
uint8_t key[256];
|
||||
size_t keylen = 0;
|
||||
char *ekey = getenv("KEY");
|
||||
FILE *f;
|
||||
|
||||
if (argc == 2) {
|
||||
if (! (f = fopen(argv[1], "r"))) {
|
||||
perror(argv[0]);
|
||||
}
|
||||
} else {
|
||||
f = fdopen(3, "r");
|
||||
}
|
||||
|
||||
if (f) {
|
||||
keylen = fread(key, 1, sizeof(key), f);
|
||||
fclose(f);
|
||||
} else if (ekey) {
|
||||
keylen = strlen(ekey);
|
||||
if (keylen > sizeof(key)) {
|
||||
keylen = sizeof(key);
|
||||
}
|
||||
memcpy(key, ekey, keylen);
|
||||
}
|
||||
|
||||
if (0 == keylen) {
|
||||
fprintf(stderr, "Usage: %s [KEYFILE] <PLAINTEXT\n", argv[0]);
|
||||
fprintf(stderr, "\n");
|
||||
fprintf(stderr, "You can also pass in the key on fd 3 or in\n");
|
||||
fprintf(stderr, "$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