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What risk does a weak SECRET_KEY pose in a Flask application?

easy📝 Conceptual Q1 of 15
Flask - Security Best Practices
What risk does a weak SECRET_KEY pose in a Flask application?
AAttackers can forge session cookies and impersonate users
BThe app will crash on startup
CFlask will disable sessions automatically
DIt causes slower response times
Step-by-Step Solution
Solution:

  1. Step 1: Understand SECRET_KEY role

    The SECRET_KEY is used to cryptographically sign session cookies.

  2. Step 2: Consequence of weak key

    If the key is weak or guessable, attackers can forge cookies, gaining unauthorized access.

  3. Final Answer:

    Attackers can forge session cookies and impersonate users -> Option A

  4. Quick Check:

    Weak keys compromise session integrity [OK]
Quick Trick: Strong SECRET_KEY prevents cookie forgery [OK]
Common Mistakes:
MISTAKES
  • Thinking weak keys only cause crashes
  • Believing Flask disables sessions automatically
  • Assuming performance is affected

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