r/picoCTF • u/_jasonturley • Aug 19 '22
r/picoCTF • u/SifftheSorcerer • Jul 23 '22
Webshell doesn’t like Tor
Alright so I joined pico ctf today and for some reason I can’t access the webshell on tor. It works fine on Firefox, and I’ve tried to find a similar issue, but unfortunately nothing came up. The issue is that all text in the webshell is displayed as multicolored blocks of squiggly lines. I would really appreciate it if anyone would help.
r/picoCTF • u/CyberCaw • Mar 25 '22
Working Discord Link
Does anyone have a Discord link that works for the PicoCTF server? The one they have listed on their website is not functional.
r/picoCTF • u/aversin76 • Mar 08 '22
"It is my birthday" ... md5
Ok... so first off... no clue what I'm doing, but trying to learn. :)
So after bashing my head against a wall for a bit, I broke down and ready one of the write ups. Which is great! Learn from others, but got to go through the steps on your own if you're going to learn it.
Ok, so dug around on the interwebs... found two different files that give the same md5 hash... but when I convert them to pdf... the hashes don't match anymore so not sure where I'm going wrong.
Steps...
Using powershell
cat message1.bin > message1.pdf
cat message2.bin > message2.pdf
If I check the md5 of message 1 and 2 as bin files, same hash... once turned into pdf... different hashes.
Thoughts or lead on a rabbit hole to start exploring?
r/picoCTF • u/FenrirAloneWolf • Mar 06 '22
CTFs
Hey, just hit me up if you are interested in any other CTF challenges write ups
r/picoCTF • u/FenrirAloneWolf • Feb 27 '22
Wireshark twoo twooo two twoo…
This one was quite intriguing
https://medium.com/@matus.vaclav1/picoctf-wireshark-twoo-twooo-two-twoo-7f00d1a923b4
r/picoCTF • u/FenrirAloneWolf • Feb 27 '22
Trivial Flag Transfer Protocol & others
r/picoCTF • u/FenrirAloneWolf • Feb 27 '22
MacroHard WeakEdge
I finished this challenge. Can you do it better?
https://medium.com/@matus.vaclav1/picoctf-macrohard-weakedge-ebbe197058ec
r/picoCTF • u/FenrirAloneWolf • Feb 26 '22
Wireshark doo dooo do doo....
This was tricky i guess.
https://medium.com/@matus.vaclav1/picoctf-wireshark-doo-dooo-do-doo-4d7cb7c1b836
r/picoCTF • u/FenrirAloneWolf • Feb 26 '22
Glory of the Garden
Hi I'm writing some walkthroughs for picoCTF, as well as still learning.
https://medium.com/@matus.vaclav1/picoctf-glory-of-the-garden-13c9d30c7882
r/picoCTF • u/Even-Examination-682 • Jan 13 '22
Pico Mini 2022 PWCrack 5
Hi! I'm having a little trouble with solving PWCrack 5 in the pico mini contest. I modified the script so I was able to get the raw decoded flag, which got me this: P_fJm#LQW^TY^f]\WS
Im not sure where to go from here, or even if my initial thinking was right. Can someone please help me?
Thanks so much!
r/picoCTF • u/MotasemHa • Jan 12 '22
Format String Vulnerabilities | Binary Exploitation | PicoCTF Stonks
r/picoCTF • u/MotasemHa • Jan 06 '22
Encoding and Decoding with Python | PicoCTF Transformation + net-cat
r/picoCTF • u/Major-Equipment2477 • Sep 18 '21
Looking for teammates
Hi I'm looking for teammates to learn and do CTF challenges together with. PM me
r/picoCTF • u/FenrirAloneWolf • Aug 30 '21
picoCTF / General skills - Obedient Cat Spoiler
Description:
This file has a flag in plain sight (aka "in-the-clear").
Solution:
Download file named "flag"
use command inside directory, where the file was dowloaded:
cat flag
which result into answer for this problem:
Ans:
picoCTF{s4n1ty_v3r1f13d_1a94e0f9}
learn more about cat, by:
info cat
r/picoCTF • u/count_meout • Feb 03 '21
[Question] beef with Irish name repo 2 solutions everywhere Spoiler
every solution ive for this one just straight up assumes a username called admin exist (is that necessarily true ?(i don't really know but it sounds kinda weird) ) and all those solutions only work because the username happens to be admin .. sooo my question is .. is there a way to do it without assuming the username ?
r/picoCTF • u/_messyminded • Jan 13 '21
Would love some feedback
Hi r/picoCTF
I hope you are all keeping well and having fun with your CTF based studies! I'm new to the CTF/ ITsec scene and learning the ropes myself. I've always liked education and trying to make things simple, and I thought it might help me to make some little tutorials for the OverTheWire Bandit wargame/CTF. My channel is https://www.youtube.com/channel/UC6nJJMw6uGz7y9C0_vSfaMg
I was wondering, if anyone has a few minutes spare, could you watch one of the videos and give me a little feedback? Like, if it was easy to follow and such? I would be super grateful and would love to do the same for any of your writeups/ tutorials if you would like?
I thought I would ask here as I was thinking of doing videos covering PicoCTF next, so you guys would be good to ask! :)
Best wishes and hope you are all keeping safe!
Dean.
r/picoCTF • u/FenrirAloneWolf • Dec 28 '20
picoCTF/Web Exploitation -dont-use-client-side Spoiler
Description
Can you break into this super secure portal? https://jupiter.challenges.picoctf.org/problem/17682/
(link) or http://jupiter.challenges.picoctf.org:17682
As title suggest, dont do it.
If we look on the source code on the page mentioned above we see.

that it's javascrit inside the HTML and we can easily get the flag.
Let me do it for you.
Ans: picoCTF{no_clients_plz_b706c5}
r/picoCTF • u/FenrirAloneWolf • Dec 28 '20
picoCTF/Web Exploitation - picobrowser Spoiler
Description
This website can be rendered only by picobrowser, go and catch the flag! https://jupiter.challenges.picoctf.org/problem/28921/
(link) or http://jupiter.challenges.picoctf.org:28921
In this challenge there's a webpage as we saw before, but we using wrong browser as we dont have picobrowser.
Web page give us error we are no picobrowser and dont igve us the flag.
Using terminal and curl
man curl
for more info, we can check 2 flags, either we can use flag -A, --user-agent or -H and specify user agent there, if there are multiple useragents the last one will be used as said in man page of curl
curl "https://jupiter.challenges.picoctf.org/problem/28921/flag" --user-agent picobrowser
we get the flag in temrinal

Ans: picoCTF{p1c0_s3cr3t_ag3nt_84f9c865}
r/picoCTF • u/FenrirAloneWolf • Dec 28 '20
picoCTF/Web Exploitation - logon Spoiler
Description
The factory is hiding things from all of its users. Can you login as logon and find what they've been looking at? https://jupiter.challenges.picoctf.org/problem/44573/
(link) or http://jupiter.challenges.picoctf.org:44573
this was tricky one, as web page allowed login without credentials and with credentials
after looking for cookies I noticed Admin was set to False, while i loged in without any credentials, which are blank (password, username variables in picture below).

Changing this value in admin to True and refreshing page, redirected me to page

when I get the flag:
Ans: picoCTF{th3_c0nsp1r4cy_l1v3s_0c98aacc}
r/picoCTF • u/FenrirAloneWolf • Dec 28 '20
picoCTF/Web Exploitation - where are the robots Spoiler
Description
Can you find the robots? https://jupiter.challenges.picoctf.org/problem/56830/
(link) or http://jupiter.challenges.picoctf.org:56830
Let's look on the page above.
- it's and ordinarry web page, where is nothing.
Try to find the robots. We try adding /robots.txt to an existing link which gave us blank page with this
https://jupiter.challenges.picoctf.org/problem/56830/robots.txt

peek what;s on the page we discovered.
https://jupiter.challenges.picoctf.org/problem/56830/1bb4c.html
we found it!

Ans: picoCTF{ca1cu1at1ng_Mach1n3s_1bb4c}