socat stdin /dev/blog

Blog of Parth Kolekar

Double Hash

# # # #

one fish twofish red fish blowfish

0xcaae8ee4f458ff776860e57141313e1e145423932e79e799d5133af8610e40d 94299046d28022d0b0efaa7fd3177b87e8e8530667111180e47da98f84846d753 cf9afa7c2635c93cf93ef8035b2217c05e192e3d2547e084c86085c2b83ef2b5

Solution

The...

...

Boring Assignment

# # # #

There was once a guy, who hadn't anything to do. So he made haiku.

CTF question, related to cryptography, he presents to you.

Solve you can or not, you must at least try or else, you disappoint him.

  • Flag Format : /FLAG[A-Z]+/

Provided boring...

...

Macbeth

# # # # #

Find the flag.

  • Flag Format /flag:[a-zA-Z]+/

Provided Macbeth.docx

Hint : Not all characters are created equal.

Solution

Opening the file we can quickly tell that the entire file has been written in two fonts. We unzip the docx file, and grep...

...

Kill My Linux

# #

So I have another reverse question. This one should be easy, all you have to do is to let this binary run, and it will eventually print the correct answer. :)

  • Hint : The binary is dynamically linked.
  • Hint : How is the executable crashing...

...

Bitmaps are cool

# # #

Here is a tiny file that you might find fun to do while cramming other forms of knowledge in your head. :D

All the best for your exams.

  • Flag Format: /flag{.+}/

Provided text.bmp

Solution

This is a simple question meant to be a refresher while...

...

Felicity Throwback

# #

A huge throwback to Felicity.

Pre-Felicity Fun

Before my own Felicity, I was busy with the Felicity of the year prior. That entire Felicity can be summed up as following. (Names Redacted.)

  • J! J!, he's our man, if he can't do it, no one can.
...

Lips Are Sealed

# # # #

A mythical beast has broken through the magical community and is wreaking havoc in the human world. Shrenik was assigned to go and subdue the said beast, but in his haste, he forgot to ask what manner of beast it was. He asks me to tell it to him,...

...

Trash Dove

# # #

Find the flag that has been going viral all over Facebook.

  • Flag Format: /flag{.+}/

Provided media Provided media2 – Easier

Solution

We try to inspect the file to see what it is.

$ file media
media: ASCII text, with very long lines, with CR...
...

CAS Setup

# # # #

CAS is a java program used to provide a unified login to people. It supports a bunch of things, the most important among it being the ability to support the usage of LDAP.

In this setup, I deploy it to the tomcat-jsvc on default versions.

I also...

...

Timing Attack

# # # #

Once upon a time, there was a programmer. His name was Anshul. He did not know how to work with passwords. His friend Animesh took this opportunity to do jugaad and guess the passwords so that he is able to order a lot of free shirts from MustCapture...

...