Alex Badics badicsalex

## namespacefs_writeup.md

      
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                badicsalex
                / namespacefs_writeup.md
            
            
              Created
              August 31, 2020 19:54
            
              
                Writeup for GCTF2020 task Namespacefs
              
          
    Namespacefs


Original Description
The task
Step 1: path check
Step 2: sandboxed RCE
Step 3: namespace and fsuid shenanigans
Flag
Exploit code

Original Description

A remote filesystem with protobufs and namespace-based security. You can find the flag at /home/user/flag (read-only by root)

  
## threading_writeup.md

      
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                badicsalex
                / threading_writeup.md
            
            
              Created
              August 31, 2020 18:56
            
              
                Writeup for GCTF2020 task Threading
              
          
    Threading


Original description
The task
The sandboxed language
The attack surface
Fun with undefined behaviour
Solution

Original description


## gogopowersql.md

      
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                badicsalex
                / gogopowersql.md
            
            
              Last active
              October 18, 2019 22:23
            
              
                Writeup for the GoGo PowerSQL task of Hitcon 2019
              
          
    GoGo PowerSQL

Description

Pwn me
[service URL]
[.tar.gz of the service]
Type

🍊

  
## luatic.md

      
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                badicsalex
                / luatic.md
            
            
              Last active
              October 18, 2019 22:23
            
              
                Writeup for the Luatic task in Hitcon 2019
              
          
    Luatic

Description

Win the jackpot!
Type

🍊
(misc php redis lua pwn thing)
Code