CTF Challenges By Cyber Student Crew Members (previously Project Cyber)
Published by Rajvi Khanjan Shroff,
Want to try your hand at CTF Challenges? Here are some challenges created by Cyber Student Crew (previously Project Cyber) members! If you want an intro to what CTFs are, check out the article we have on it here: It's officially CTF Season! Some tips n' tricks to help
1) Creator: Adishree Das
Topic: Cryptography/Encoding
You find a strange type of code. What does it mean?
VW0xNGFGcDZiMmRaTTJ4cFdsaEtabGt5YUd4YVp6MDk=
VW0xNGFGcDZiMmRaTTJ4cFdsaEtabGt5YUd4YVp6MDk=
Highlight below to get some hints! The text is in white to avoid giving it away at once ;)
* If you're not sure what to do, use Control + A.
Hint: 3 times the charm
Hint 2: CyberChef
Hint 2: CyberChef
Highlight below to get the flag.
Solution: This is encoded in base 64 format. Use a decoder tool like CyberChef to decode it. The flag is "cyber_chef"
2) Creator: Marie Ramirez
Solutions:
Answer 1 uses base 64 encoder, so to solve you must decode it from base 64
Answer 2 uses Rot 13 encoder, so to solve you must decode it from rot 13
Answer 3 uses both Base 64 and Rot 13, you must decode it with Rot 13 first then with base 64
Answer 4 uses rot 13 and base 64, you must decode it with rot 13 first then twice with base 64
Topic: Open Source Intelligence (OSINT)
I have to meet someone at this location, but I want to stop by Starbucks before we meet.
What's the address of the nearest Starbucks?
Highlight below for the answer.
Answer: 1283 N Hacienda Blvd.
3) Creator: Atom Ramirez
Topic: Password Cracking
Prompt: Decode each of the following messages. Use only base 64 and rot 13.
● (Easy) First password: Q1RGXMgYXJlIGZ1biB0byBwYXJ0aWNpcGF0ZSBpbiAhIQ==
● (Easy) First password: Q1RGXMgYXJlIGZ1biB0byBwYXJ0aWNpcGF0ZSBpbiAhIQ==
Highlight below (or use Control + A) to get a hint!
Hint : Try looking for a decoder
Hint : Try looking for a decoder
Highlight below for the answer.
Answer : CTF’s are fun to participate in !!
● (Easy) Second Password: V yvxr jnyxvat zl ovt erq qbt anzrq pyvssbeq
Highlight below (or use Control + A) to get a hint!
Hint: Try searching for different decoders
Hint: Try searching for different decoders
Highlight below for the answer.
Answer: I like walking my big red dog named clifford
● (Medium) Third Password:
D2ulnKA0oJSmVTymVT15VTMuqz9lnKEyVTuioTyxLKx
D2ulnKA0oJSmVTymVT15VTMuqz9lnKEyVTuioTyxLKx
Highlight below (or use Control + A) to get a hint!
Hint: Who said you couldn’t decode twice?
Highlight below for the answer.
Answer: Christmas is my favorite holiday
● (Hard) Fourth Password:
Um5CMmNtRndjaUIyWmlCNmJDQnpibWxpWlhabmNpQm1hRzkzY25CbkNn
Highlight below (or use Control + A) to get a hint!
Hint: What if they decoded it three times?
Highlight below for the answer.
Answer: Science is my favorite subject
Looking for explanations? Highlight again to get 'em!
Solutions:
Answer 1 uses base 64 encoder, so to solve you must decode it from base 64
Answer 2 uses Rot 13 encoder, so to solve you must decode it from rot 13
Answer 3 uses both Base 64 and Rot 13, you must decode it with Rot 13 first then with base 64
Answer 4 uses rot 13 and base 64, you must decode it with rot 13 first then twice with base 64
Do you want all the answers in one go? Keep scrolling down.
Answers:
1. Solution: This is encoded in base 64 format. Use a decoder tool like CyberChef to decode it. The flag is "cyber_chef"
2. Answer: 1283 N Hacienda Blvd.
3. The answers, in order, are:
CTF’s are fun to participate in !!
I like walking my big red dog named clifford
Christmas is my favorite holiday
Science is my favorite subject
Keep an eye out for more CTF challenges, coming soon! ⚡