Hard Live

Jenny

140 points

29 Solves

Binary

thekidofarcrania moderator badge

Community Rating: 4.71 / 5

Headline

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Jenny, (alt. spelling J[e]ni), found a nice Java program to reverse engineer. It's Java, so it's easy to reverse engineer, right (since there's a lot of decompilers out there)? Prove to her that this is easy -- or hard -- good luck! https://mega.nz/#!2WoRzaZY!NH8XQ1_qbp1ZOrknng198nLvR6dMC6eDIQs1TlRi3pY

First 10 Solvers

Rank Username
1 nepz
2 kronos
3 bobo1239
4 Ntoskrnl
5 ebouteillon
Rank Username
6 Hackerstein
7 shikame
8 mamimi1773
9 Lia_V
10 CapitalZer0

Comments

    • PFessORx

      0.0

      Hader Than any CTF i attended. Good Job Bro :{)

    • thekidofarcrania moderator badge

      1

      This challenge has been tested under a ubuntu18.04 machine (using Java 8)

    • theketchup

      0.0

      It is getting difficult to obtain the version of OpenSSL this is compiled for. Can a link be provided to the exact binary so that is not the stumbling block?

    • pr0ctf

      Protected -1

      [REDACTED] This comment is only shown to users who have solved this challenge.

    • Rivit

      1

      Took me a lot of time but it was very very educating and interesting :D Thanks!

    • mamimi1773

      Protected 0.0

      [REDACTED] This comment is only shown to users who have solved this challenge.

    • thekidofarcrania moderator badge

      0.0

      Here's a big fat HINT: when I wrote this challenge, it was on Java 8 (so probably use that to run it ;) There will be multiple valid passwords, but only one of them make sense!

      • ThomasAnderson666

        Protected 0.0

        [REDACTED] This comment is only shown to users who have solved this challenge.

      • ebouteillon

        Protected 0.0

        [REDACTED] This comment is only shown to users who have solved this challenge.

        • ebouteillon

          Protected 0.0

          [REDACTED] This comment is only shown to users who have solved this challenge.

      • nza777

        0.0

        Are you able to tell an exact version of JVM that this challenge works with? I'm interested in version number and vendor (oracle JVM / opejdk...)

        • thekidofarcrania moderator badge

          0.0

          Keep in mind the date of when this challenge was written :)

          I don't actually remember the exact JVM version, I think when I wrote it it was using openjdk, but I recently tested and it works in the latest version of openJDK 8

          • nza777

            0.0

            Oh, the information that it was openjdk is enough for me. I was using oracle jdk, what could have been a point of failure. Thank you for info.