Official xorxorxor Discussion

Official discussion thread for xorxorxor. Please do not post any spoilers or big hints.

Comments

  • Anyone solve this one?

  • solved using tool, but would like to understand details how to manually do this. if anyone can provide detail send me message.

  • @th30ne said:

    solved using tool, but would like to understand details how to manually do this. if anyone can provide detail send me message.

    Sent you a PM.


    Hack The Box
    GREM | OSCE | GASF | eJPT

  • @HomeSen
    Would also send me a PM? I tried on many ways but couldn't solve it

  • Could anyone PM me and look over my code? I understand the vulnerability but am getting strange output.

  • someone has a hint? i have strange output.

  • edited December 2020

    @shad0w0lf said:

    someone has a hint? i have strange output.

    Read the code and look into the provided output file.


    Hack The Box
    GREM | OSCE | GASF | eJPT

  • @R4j Enjoyed the challenge. Something everyone should learn to do manually.

    snuggles

  • @HomeSen - thx for the hint - solved it - carefully reading :wink:

  • may anyone give me hint

  • hello hello was a nice challenge XD for a hint what i did to understand the script always try to put a print on each variable so u can know what the script does

  • going for other challenges as well

  • N!ce easy Challenge and it's done.

    Hint:
    Read the code, and find a way to decrypt the flag. cyberchef will not help you this time, but python yes .

    Try!ng Hard3r, N3v3r G!v3Up.

  • I need help, can someone PM me?

  • I'm hitting a big wall with this one. Would anyone mind PMing me a hint? thank you

  • Pay close attention to what the source code says it does. Then you can use this encode a known-plaintext which gives you a crib you can use to decode the rest of the string.

    TazWake

    Note: https://www.nohello.com/

    Happy to help people but PLEASE explain your problem in as much detail as possible! If you say vague things like "It's not working", I cant help. This isn't Twitter so my DMs are always open.

    Currently have very limited HTB time but will try to respond as quickly as possible.

  • Very easy challenge. For people who might have trouble I would recommend going to cryptohack.org and doing the You either know, XOR you don't challenge it has good hints for this

    If what I said helped you you can always send some respects ^^

  • can someone give me a hint?

  • Hey Guys, any chance of a hint, I understand what the code is doing but I am at a loss at to what to do

  • edited January 5

    I solved this challenge completely manual - actually I've done most of it with pen and paper. I am not sure if this is an intended way to solve it, but I'm not that good with python yet, so this was the easiest way for me to go. I would really appreciate it if someone could PM me, so I can analyze their way of solving this challenge by programming (or to send them my poor code-ideas and have a chat about what I've done wrong) :-)

  • @Kati if you want you can PM me.

    A hint, the XOR has the following properties

    A ⊕ A = 0 and is an associative function so
    A ⊕ (B ⊕ C) = (A ⊕ B) ⊕ C
    

    There is some stuff you should already know from previous challenges too that might help

    If what I said helped you you can always send some respects ^^

  • Hi! I have a script worked out and it tells me it finds the key. But its the wrong key(i think). Can I dm anyone for some tips on what is wrong?

  • Solved manually.

    As @Fukurou pointed: XOR is used for symmetric encryption where the same key is used to both encrypt and decrypt a message...

    You already know how the flag looks like :|

  • Had to solve this manually with a script, but it was a good challenge. Feel free to DM for nudges.

    Harbard

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