This blog post contains the writeups for the following challenges :-
- Misc
- Lorem Ipsum
- Forensics
- Image Viewer
- The row beneath
- What’s the password
- Steg 2
- Steg Ultimate
- Cryptography
- Beware the Ides of March
- Sus
- Reverse Engineering
- Password 1
- Trivia
- Trivia 1
- Trivia 3
- Trivia 4
- Trivia 5
- Trivia 7
- Trivia 8
LOREM IPSUM
The given text when googled will give you the original text and you’ll realise that the given text has some additional characters attached to some words.
Lorem ipsum dolor/c/ sit amet, consectetur/y/ adipiscing /c/elit, sed do/t/ eiusmod tempor inci/f/didunt ut labore et dolore magna aliqua/l/. Ut enim ad minim/a/ veniam, quis/t/ nostrud exercitation ullamco/i/ laboris nisi/n/ ut aliquip ex ea/i/ commodo/s/ consequat. Duis /c/aute irure dolor in reprehenderit in voluptate velit /o/esse cillum dolore eu fugiat nulla pariatur. Excepteur /o/sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim /l/id est laborum.
Extracting all these characters will give the flag.
So the flag for this challenge is CYCTF{latiniscool}
IMAGE VIEWER
Taking a strings of the given image will provide the flag.
CYCTF{h3h3h3_1m@g3_M3t@d@t@_v13w3r_ICU}
THE ROW BENEATH
Similar to the previous challenge the flag can be retrieved with the help of strings.
So the flag is CYCTF{L00k_1n_th3_h3x_13h54d56}
WHATS THE PASSWORD?
I used steghide to extract the image. Firstly I tried with an empty password. When that didn’t worked I took a look at the image and the password was clear. It was sudo
So the flag was written in the extracted text file.
And the flag is CYCTF{U$3_sud0_t0_achi3v3_y0ur_dr3@m$!}
STEG 2
I used stegsolve and found the flag in red plane 1
The flag is CYCTF{l$b_st3g@n0gr@phy_f0r_th3_w1n}
STEG ULTIMATE
First I used an empty password to extract steg3.jpg out of the original image using steghide. Then I used steghide again with an empty password on steg3.jpg and got a text file which directed me to pastebin.
The pastebin URL was https://pastebin.com/YnKqT9s3
When I went to this URL I received the following message:
Hmmmm. What cipher is this? Sometimes, it’s not the type we think.
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
The cipher was base64 encoded and decoding it gave me the ascii code of a PNG image
I used Cyberchef to decode and save the file as a PNG and got the flag
CYCTF{2_f0r_th3_pr1c3_0f_1_b64}
BEWARE THE IDES OF MARCH
The given ciphertext is JFJAM{j@3$@y_j!wo3y}. Now one thing is very clear that JFJAM will convert to CYCTF. Notice the positions of J’s and C’s. This was a clear indication of Caesar Cipher. So I used dcode to convert the ciphertext to plain and found that the key was +7.
So the flag was CYCTF{c@3$@r_c!ph3r}
SUS
For this one I guessed that it could be a Vignere Cipher. So I used Guballa to decode it and found the plaintext to be wouldyoulikesomevinegarwiththat and key to be salad.
So the flag is CYCTF{wouldyoulikesomevinegarwiththat}
PASSWORD 1
The contents of the file are:
import random
def checkPassword(password):
if(len(password) != 43):
return False
if(password[26] == ‘r’ and
password[33] == ‘t’ and
password[32] == ‘3’ and
password[16] == ‘3’ and
password[4] == ‘F’ and
password[21] == ‘r’ and
password[38] == ‘1’ and
password[18] == ‘c’ and
password[22] == ‘@’ and
password[31] == ‘g’ and
password[7] == ‘u’ and
password[0] == ‘C’ and
password[6] == ‘p’ and
password[39] == ‘3’ and
password[3] == ‘T’ and
password[25] == ‘3’ and
password[29] == ‘t’ and
password[42] == ‘}’ and
password[12] == ‘g’ and
password[23] == ‘c’ and
password[30] == ‘0’ and
password[40] == ‘3’ and
password[28] == ‘_’ and
password[20] == ‘@’ and
password[27] == ‘$’ and
password[17] == ‘_’ and
password[35] == ‘3’ and
password[8] == ‘7’ and
password[24] == ‘t’ and
password[41] == ‘7’ and
password[13] == ‘_’ and
password[5] == ‘{‘ and
password[2] == ‘C’ and
password[11] == ‘n’ and
password[9] == ‘7’ and
password[15] == ‘h’ and
password[34] == ‘h’ and
password[1] == ‘Y’ and
password[10] == ‘1’ and
password[37] == ‘_’ and
password[14] == ‘t’ and
password[36] == ‘r’ and
password[19] == ‘h’):
return True
return False
password = input(“Enter password: “)
if(checkPassword(password)):
print(“PASSWORD ACCEPTEDn”)
else:
print(“PASSWORD DENIEDn”)
So I just rearranged the code which was a useless effort as I could have used python to manage this somehow.
The flag is CYCTF{pu771ng_th3_ch@r@ct3r$_t0g3th3r_1337}
TRIVIA 1
The flag is Linus Torvalds
TRIVIA 3
Found the answer on Wikipedia
The flag is Yahoo
TRIVIA 4
The flag is honeypot
TRIVIA 5
The flag is shoulder surfing
TRIVIA 7
The flag is sfc
TRIVIA 8
I just reverse searched the image on Google
The flag is haskell