EZ-CTF2022 / Cryptography – No Kidding

Ulli Weichert/ Mai 7, 2022/ IT-Security, Write-Ups/ 0Kommentare

No Kidding 70 points Solves: 209 Easy No Other Kids Invent Anything like this…lol Flag Format EZ-CTF{WHATEVER_THE_MESSAGE_IS_ALL_CAPS} Solving This looks like Multi-tap or something similar… let’s just use the numbers and see what happens. I’ll use dcode.fr for this. 8/44/444/7777\\\444/7777\\\8/44/33\\\555/2/6/33/7777/8\\\222/8/333\\\333/555/2/4\\\33/888/33/33/33/33/777 T H I S\\I S\\T H E\\L A M E S T\\C T F\\F L A G\\E V E E

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EZ-CTF2022 / Cryptography – McFly

Ulli Weichert/ Mai 7, 2022/ IT-Security, Write-Ups/ 0Kommentare

McFly 125 points Solves: 14 Easy Riib_fc_I1deo_B1ff3n_Bpz_Yoo_Mdsxfkt_XoPxhatt Flag format: EZ-CTF{D3c0d3d_Message} Solving This is a fun one 🙂 The hint for the challenge is this given picture Okay what do we see here? This is Biff, the oponent of Marty McFly from the back to the future movies… a classic 😀 But something seems off in this picture… in the movie

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JerseyCTF 2022 / web – apache-logs

Ulli Weichert/ April 10, 2022/ IT-Security, Write-Ups/ 0Kommentare

apache-logs Points: 100 An apache log file that contains recent traffic was pulled from a web server. There is suspicion that an external host was able to access a sensitive file accidentally placed in one of the company website’s directories. Someone’s getting fired… Identify the source IP address that was able to access the file by using the flag format:

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JerseyCTF 2022 / osint – dns-joke

Ulli Weichert/ April 10, 2022/ IT-Security, Write-Ups/ 0Kommentare

dns-joke Points: 100 Description A system administrator hasn’t smiled in days. Legend has it, there is a DNS joke hidden somewhere in www.jerseyctf.com. Can you help us find it to make our system administrator laugh? Solving To get the flag, check the dns entries of the www.jerseyctf.com subdomain. jerseyctf.com TXT @192.168.178.1 +short "jctf{DNS_J0k3s_t@k3_24_hrs}" This script will help you get the

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JerseyCTF 2022 / mist – root-me

Ulli Weichert/ April 10, 2022/ IT-Security, Write-Ups/ 0Kommentare

root-me Points: 400 SSH into the challenge host, 0.cloud.chals.io on port 19777 Username: ubuntu Password: jctf2022! Find the flag Solving We have login credentials for a server… so let’s dive in: ssh ubuntu@0.cloud.chals.io -p 19777 Okay… first we check sudo permissions, therefore just use sudo -l, but we don’t have any permissions. So let’s look for some other quickwins, shall

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JerseyCTF 2022 / forensics – speedy-at-midi

Ulli Weichert/ April 10, 2022/ IT-Security, Write-Ups/ 0Kommentare

speedy-at-midi Points: 150 Your partner-in-crime gets a hold of a MIDI file, riff.mid, which intelligence officials claim to contain confidential information. He has tried opening it in VLC Media Player, but it sounds just like the piano riff in riff.mp3. Can you find the right tool to extract the hidden data? Solving Downloaded the files Looked at it wit sonic

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