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Podcast: Chaos Computer Club - recent events feed
Episode: Race conditions, transactions and free parking (39c3)
Description: ORM's and/or developers don't understand databases, transactions, or concurrency.
After the [Air France-KLM dataleak](https://media.ccc.de/v/37c3-lightningtalks-58027-air-france-klm-6-char-short-code) I kept repeating this was not a real hack, and confessed I always wanted to hack a system based on triggering race conditions because the lack of proper transactions.
This was way easier than expected. In this talk I will show how just adding `$ seq 0 9 | xargs -I@ -P10 ..` can break some systems, and how to write safe database transactions that prevent abuse.
In this talk I will explain what race conditions are. Many examples of how...