TCS HackQuest Season 10 Round 1: Experience| by Annette

Round 1 of TCS HackQuest Season 10 involved solving seven challenges within a six-hour timeframe. Here's a summary of each challenge:

1. Challenge Title: Base64 Encoding

   • Approach: The file was encoded in base64, which needed to be decoded using tools like CyberChef or Python scripts.

2. Challenge Title: Paper Scripts

   • Approach:
     1. Analyzed the PDF document.
     2. Used strings command and found JavaScript keywords.
     3. Checked for embedded JavaScript with pdfinfo -js.
     4. Reversed obfuscation by interpreting hex-encoded characters using CyberChef.

3. Challenge Title: UNFAIR FLIP

   • Approach:
     1. Inspected the page source and console.
     2. Manipulated client-side runtime in the browser's console to set window.coins array values.
     3. Called the hidden flag function by setting specific coin flip results.

4. Challenge Title: ChatOps

   • Approach:
     1. Interacted with a chatbot to uncover admin access details.
     2. Used various URLs and subdomains to trigger bot responses.

Read the full article at InfoSec Write-ups - Medium

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