Year: 2018

  • PolySwarm Smart Contract Hacking Challenge Writeup

    This is a walk through for the smart contract hacking challenge organized by PolySwarm for CODE BLUE conference held in Japan on November 01–02. Although the challenge was supposed to be held on-site for whitelisted addresses only, Ben Schmidt of PolySwarm kindly shared a wallet so that I could participate in the challenge.

  • Adobe Experience Manager Vulnerability Scanner

    Adobe Experience Manager is content management system that is based on Apache Sling – a framework for RESTful web-applications based on an extensible content tree. Apache Sling in its turn is basically a REST API for Apache Jackrabbit, which is an implementation of Content Repository API for Java (JCR). The main principle of JCR is…

  • Predicting Random Numbers in Ethereum Smart Contracts

    Slides from my AppSec California 2018 talk “Predicting Random Numbers in Ethereum Smart Contracts” Detailed blog post: https://blog.positive.com/predicting-random-numbers-in-ethereum-smart-contracts-e5358c6b8620