The challenge involves understanding the use of echo
to print variables.
- The prompt states that
/challenge/run
will not print the flag. - The prompt states that the
echo
commans needs to be used to print the flag. - The prompt also states that the flag is stored in the
FLAG
variables.
- Following the syntax to print a variables using
$
, the following command is run:
echo $FLAG
- The following output is generated:
pwn.college{IVzM8hRlUsQPwXRFrtUykmgXp-I.ddTN1QDL2MTO0czW}
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge involves understanding how to set a value to a variable using =
.
- The prompt states that in order to access the flag, we need to assign
PWN
variable the value ofCOLLEGE
. - The prompt explains thst
=
needs to be used WITHOUT spaces for assignment.
- Based on the prompt and syntax, the following command is run:
PWN=COLLEGE
- The following output is generated:
You've set the PWN variable properly! As promised, here is the flag:
pwn.college{IEGa7ZcBdFj8oS-9k6KnxScP_hf.dlTN1QDL2MTO0czW}
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge involves understanding how to set a variable to a value containing spaces.
- The prompt states that the
PWN
variable needs to be set to the valueCOLLEGE YEAH
. - The prompt also states that the terminal does not interpret spaces as needed without the use of ```""`` during assignment.
- Based on the syntax and prompt instructions, the following command is run:
PWN = COLLEGE YEAH
- The following output is generated:
You've set the PWN variable properly! As promised, here is the flag:
pwn.college{Mt3i2fY8ovXue57DH4tH8T38gvn.dBjN1QDL2MTO0czW}
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge involves understanding how to export variables that are local to a shell process, and pass them into the environment variables of child processes.
- The prompt explains the use of
export
to export a variable. - The prompt states that the
PWN
variable needs to be give the valueCOLLEGE
and exported. The following command is run:
PWN=COLLEGE
export PWN
- The following output is generated:
You've set the PWN variable to the proper value!
- Next, the
COLLEGE
variable needs to be set to the value ofPWN
and not exported. The following command is run:
COLLEGE=PWN
- The following output is generated:
You've set the PWN variable to the proper value!
You've set the COLLEGE variable to the proper value!
- The prompt states that the
/challenge/run
needs to be invoked after the assignment.
- Based on the prompt, the following command is run for flag generation:
/challenge/run
- The following output is generated:
CORRECT!
You have exported PWN=COLLEGE and set, but not exported, COLLEGE=PWN. Great
job! Here is your flag:
pwn.college{oy6NBfq7A1QxBgVzxWh8YChrouC.dJjN1QDL2MTO0czW}
You've set the PWN variable to the proper value!
You've set the COLLEGE variable to the proper value!
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge involves understanding how to print all the exported variables using env
.
- Based on the prompt, it is understood that the
env
command needs to be run, which will print a list of variables containingFLAG
.
- The
env
command is run. - The following output is generated:
SHELL=/run/dojo/bin/bash
SESSION_MANAGER=local/variables~printing-exported-variables:@/tmp/.ICE-unix/116,unix/variables~printing-exported-variables:/tmp/.ICE-unix/116
WINDOWID=27262979
COLORTERM=truecolor
XDG_CONFIG_DIRS=/run/dojo/etc/xdg:/etc/xdg
HOSTNAME=variables~printing-exported-variables
SSH_AUTH_SOCK=/tmp/ssh-XXXXXXtyzu8h/agent.133
SSH_AGENT_PID=134
GDK_PIXBUF_MODULE_FILE=/nix/store/gpiy256schil984zxxqx8y0d4q2j6bm8-librsvg-2.58.1/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache
PWD=/home/hacker
PANEL_GDK_CORE_DEVICE_EVENTS=0
DOJO_AUTH_TOKEN=5049c61d1635955925a2759e185da08c672f6d711a202ee19dfcdec93dc8e64b
GI_TYPELIB_PATH=/nix/store/fhv964af9qiyvipfzxh53pgln1r18za6-glib-2.80.2/lib/girepository-1.0:/nix/store/aps6xk6z2zwdl3kjh1ckc30nz47k773b-at-spi2-core-2.52.0/lib/girepository-1.0:/nix/store/yg53p80khxl4v5r070a0mff7h34i29wj-gdk-pixbuf-2.42.12/lib/girepository-1.0:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/lib/girepository-1.0:/nix/store/97yyz3qlzi69hr9r71b4v2ld0d2djf4g-harfbuzz-8.4.0/lib/girepository-1.0:/nix/store/f2vnqb6i9bi5jdhdb708rpmf0pry6iqn-pango-1.52.2/lib/girepository-1.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/lib/girepository-1.0:/nix/store/gpiy256schil984zxxqx8y0d4q2j6bm8-librsvg-2.58.1/lib/girepository-1.0:/nix/store/gxkkwrp9bwykw0c4mzlcd5fl15j23dir-gobject-introspection-wrapped-1.80.1/lib/girepository-1.0:/nix/store/x0kxca5lxm75sbnalymi4xc338q8a5bn-gobject-introspection-1.80.1/lib/girepository-1.0:/nix/store/klav9wwvb3xnvgqrc8v367j6qfrvlfii-garcon-4.18.2/lib/girepository-1.0:/nix/store/x6ypmj6lb201js4s09mz29zzzpac8avm-libdbusmenu-gtk3-16.04.0/lib/girepository-1.0:/nix/store/6f7icflqwjf8hap93dv01r3rng5i5ghh-libxfce4util-4.18.2/lib/girepository-1.0:/nix/store/snq35d3kv7ms1xajigwvsyzwm0k3rlpz-libxfce4ui-4.18.6/lib/girepository-1.0:/nix/store/s1207g605rq4mh3i86m6l4242frq6fiq-libwnck-43.0/lib/girepository-1.0:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/girepository-1.0:/nix/store/xpgf309sv9w5majf26zg50fpd9vqk1x3-xfce4-panel-4.18.6/lib/girepository-1.0
HOME=/home/hacker
LANG=C.UTF-8
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.7z=01;31:*.ace=01;31:*.alz=01;31:*.apk=01;31:*.arc=01;31:*.arj=01;31:*.bz=01;31:*.bz2=01;31:*.cab=01;31:*.cpio=01;31:*.crate=01;31:*.deb=01;31:*.drpm=01;31:*.dwm=01;31:*.dz=01;31:*.ear=01;31:*.egg=01;31:*.esd=01;31:*.gz=01;31:*.jar=01;31:*.lha=01;31:*.lrz=01;31:*.lz=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.lzo=01;31:*.pyz=01;31:*.rar=01;31:*.rpm=01;31:*.rz=01;31:*.sar=01;31:*.swm=01;31:*.t7z=01;31:*.tar=01;31:*.taz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tgz=01;31:*.tlz=01;31:*.txz=01;31:*.tz=01;31:*.tzo=01;31:*.tzst=01;31:*.udeb=01;31:*.war=01;31:*.whl=01;31:*.wim=01;31:*.xz=01;31:*.z=01;31:*.zip=01;31:*.zoo=01;31:*.zst=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.crdownload=00;90:*.dpkg-dist=00;90:*.dpkg-new=00;90:*.dpkg-old=00;90:*.dpkg-tmp=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:*.swp=00;90:*.tmp=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90:
VTE_VERSION=7603
GIO_EXTRA_MODULES=/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules:/nix/store/3zi7zn2bbz3jpx8ds4nharz67j6ajp9k-xfconf-4.18.3/lib/gio/modules:/nix/store/xgc117gcsq0y0cc4vw0szk02wx0dlbh3-dconf-0.40.0-lib/lib/gio/modules
FLAG=pwn.college{8vIh6oniSNSY9Kzc5o6yA2hyB91.dhTN1QDL2MTO0czW}
LESSCLOSE=/usr/bin/lesspipe %s %s
TERM=xterm-256color
LESSOPEN=| /usr/bin/lesspipe %s
DISPLAY=:0.0
SHLVL=2
LC_CTYPE=C.UTF-8
XDG_DATA_DIRS=/nix/store/14x11ifwhnw8fhjdxs94q7hivhdqslgx-xfce4-terminal-1.1.3/share:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/share/gsettings-schemas/gsettings-desktop-schemas-46.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/share/gsettings-schemas/gtk+3-3.24.43:/nix/store/4mnz50gh5j2sss4pm74wvzqzg1w46ax1-xfce4-settings-4.18.4/share:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/share/gsettings-schemas/gsettings-desktop-schemas-46.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/share/gsettings-schemas/gtk+3-3.24.43:/nix/store/ykksrxmcqdk67ca0821frjdry2c6pfsq-exo-4.18.0/share:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/share/gsettings-schemas/gsettings-desktop-schemas-46.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/share/gsettings-schemas/gtk+3-3.24.43:/nix/store/xpgf309sv9w5majf26zg50fpd9vqk1x3-xfce4-panel-4.18.6/share:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/share/gsettings-schemas/gsettings-desktop-schemas-46.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/share/gsettings-schemas/gtk+3-3.24.43:/nix/store/jnz1wdn463qilzhc8nj1kwccshk65pc9-xfce4-session-4.18.3/share:/nix/store/szyhy2fbbm1318qrkl6p4j5ibx6xykl4-gsettings-desktop-schemas-46.0/share/gsettings-schemas/gsettings-desktop-schemas-46.0:/nix/store/mlzl5gqfnbvrpy44zd2d5zdv1r04x977-gtk+3-3.24.43/share/gsettings-schemas/gtk+3-3.24.43:/run/dojo/share:/usr/local/share:/usr/share
PATH=/run/challenge/bin:/run/workspace/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
DBUS_SESSION_BUS_ADDRESS=unix:path=/tmp/dbus-qirpzWeJEb,guid=d70c52e34aba48aefb12c20e670a3b8a
_=/run/workspace/bin/env
- Looking through the output the
FLAG
variables is located.
FLAG=pwn.college{8vIh6oniSNSY9Kzc5o6yA2hyB91.dhTN1QDL2MTO0czW}
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge explains how to store the output of a command into a variable using $()
or backticks.
- Based on the prompt, first
PWN
is set to the appropriate path:
PWN = $(/challenge/run)
- The following output is generated:
Congratulations! You have read the flag into the PWN variable. Now print it out
and submit it!
- The following command is run to read
PWN
:
echo $PWN
- The following output is generated:
pwn.college{wzuaFyhJke5fyc39BT55xmUlKaT.dVzN0UDL2MTO0czW}
Hence the flag was procured, copied (first into the pwn terminal and then from the pwn clipboard to make it accessible to the system clipboard), and pasted into the pwn.college challenge page.
The challenge involves understanding how to read input from a user, using -p
if a prompt needs to be specified.
- The prompt states that the
PWN
variable needs to be set to the value ofCOLLEGE
using user input andread
.
- Based on the prompt, the following command is run:
read PWN
- The following input is provided:
COLLEGE
- The following output is generated:
You've set the PWN variable properly! As promised, here is the flag:
pwn.college{c3kwhDgtF2zfBoX70lxr_rC-9M8.dhzN1QDL2MTO0czW}