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November 10, 2017 23:31
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Example web service with a SQLi that decrypts data that is stored encrypted in the database.
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from flask import request, Flask | |
import json | |
from fake_stuff import current_user, db, aes_decrypt | |
secrets = {'fooCorp': 'someKey', 'barCorp': 'otherKey'} | |
app = Flask(__name__) | |
@app.route("/", methods=["GET"]) | |
def index(): | |
# pretend this request was authenticated such that we can lookup the user's company | |
secret = secrets[current_user.company] | |
# yay we've built a SQLi | |
encrypted_results = db.fetch('select qux from foo where bar = %s" % request.args['bar']) | |
# decrypt our quxes | |
data = [aes_decrypt(key=secret, value=x) for x in encrypted_results] | |
return 200, json.dumps(data) |
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