AWS Lambda

Prompts and answers

• Go to the AWS Lambda Page in your account named TryHackMeLambdaRoom-sample-function. Generate a "hello-world" test event, and invoke the lambda. See what information is returned. What is the value of the context key "memory_limit_in_mb"?
  128
• What is the RunTime of the function?
  python3.7
• What error message did you receive when the get-function command tried to read the environment variables?
  Lambda was unable to decrypt your environment variables because the KMS access was denied. Please check your KMS permissions. KMS Exception: AccessDeniedException KMS Message: The ciphertext referes to a customer master key that does not exist, doest not exist in this region, or you are not allowed to access.
• Using curl, download the zip file referenced by the Code Location. Open the file, and enter the contents of the "question3.txt" file.
  Of all the lambda functions in all the accounts in all the regions, you had to download mine.
• The handler function is missing from the zip file. What should the filename be?
  function.py
• Using the Command "aws lambda get-policy --query Policy --output text --function-name " retrieve the invocation policy for this sample function. What is the Action for the most permissive Statement?
  lambda:UpdateFunctionCode
• In your account, there is a function named "TryHackMeLambdaRoom-envars-function" Invoke this function (via the console). What is the value of SECRET_CONNECTION_STRING?
  https://falken:joshua@wopr.norad.mil/globalthermonuclearwar
• What file is deployed by the Lambda Layer attached to the "TryHackMeLambdaRoom-envars-function"?
  flag.txt
• Modify the "TryHackMeLambdaRoom-envars-function" to echo the contents of the flag.txt
  The only winning move is not to play.