HackTheBox - Photobomb

IppSec · Beginner ·🔐 Cybersecurity ·3y ago

Key Takeaways

Exploits a Ruby Sinatra Web App using nmap, discovers credentials in JavaScript, and achieves remote code execution via path injection

Original Description

00:00 - Intro 01:00 - Start of nmap 02:17 - Discovering this is a ruby Sinatra Web App based upon error message 03:15 - Discovering credentials in javascript 04:30 - Examining the HTTP Request to resize images and discovering an RCE 10:10 - Getting a reverse shell 11:12 - Discovering we have SETENV with sudo on a script, checking for path injection 12:30 - Exploiting path injection with the find command 16:00 - Exploiting path injection because the script disables some Bash Built-ins 16:45 - Explaining bash built-ins
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Uploads from IppSec · IppSec · 0 of 60

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HackTheBox - Nineveh
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 21 HackTheBox - Jail
HackTheBox - Jail
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HackTheBox - Shrek
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HackTheBox - Mantis
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HackTheBox - Node
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HackTheBox - Kotarak
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 30 HackTheBox - Enterprise
HackTheBox - Enterprise
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HackTheBox - Sense
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HackTheBox - Minion
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HackTheBox - Ariekei
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HackTheBox - Flux Capacitor
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HackTheBox - Jeeves
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HackTheBox - Tally
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HackTheBox - CrimeStoppers
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 42 HackTheBox - Fulcrum
HackTheBox - Fulcrum
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 43 HackTheBox - Chatterbox
HackTheBox - Chatterbox
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 44 HackTheBox - Falafel
HackTheBox - Falafel
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 45 How To Create Empire Modules
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HackTheBox - Nightmare
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HackTheBox - Bart
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HackTheBox - Aragog
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HackTheBox - Valentine
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 51 HackTheBox - Silo
HackTheBox - Silo
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HackTheBox - Rabbit
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 56 HackTheBox - Canape
HackTheBox - Canape
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 57 HackTheBox - Olympus
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 58 HackTheBox - Sunday
HackTheBox - Sunday
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 59 HackTheBox - Fighter
HackTheBox - Fighter
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 60 HackTheBox - Bounty
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Chapters (10)

Intro
1:00 Start of nmap
2:17 Discovering this is a ruby Sinatra Web App based upon error message
3:15 Discovering credentials in javascript
4:30 Examining the HTTP Request to resize images and discovering an RCE
10:10 Getting a reverse shell
11:12 Discovering we have SETENV with sudo on a script, checking for path injection
12:30 Exploiting path injection with the find command
16:00 Exploiting path injection because the script disables some Bash Built-ins
16:45 Explaining bash built-ins
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