2020

Financial Cryptography 2020 Recap

A few weeks ago, we went to the 24th Financial Cryptography (FC) conference and the Workshop on Trusted Smart Contracts (WTSC), where we presented our work on smart contract bug categorization (see our executive summary) and a poster on Echidna. Although FC is not a blockchain conference, it featured several blockchain-oriented presentations this year and […]

Real-time file monitoring on Windows with osquery

TL;DR: Trail of Bits has developed ntfs_journal_events, a new event-based osquery table for Windows that enables real-time file change monitoring. You can use this table today to performantly monitor changes to specific files, directories, and entire patterns on your Windows endpoints. Read the schema documentation here! File monitoring for fleet security and management purposes File […]

Our Full Report on the Voatz Mobile Voting Platform

Voatz allows voters to cast their ballots from any geographic location on supported mobile devices. Its mobile voting platform is under increasing public scrutiny for security vulnerabilities that could potentially invalidate an election. The issues are serious enough to attract inquiries from the Department of Homeland Security and Congress. However, there has been no comprehensive […]

Manticore discovers the ENS bug

The Ethereum Name Service (ENS) contract recently suffered from a critical bug that prompted a security advisory and a migration to a new contract (CVE-2020-5232). ENS allows users to associate online resources with human-readable names. As you might expect, it allows you to transfer and sell domain names. Specific details about the bug were in […]

Symbolically Executing WebAssembly in Manticore

With the release of Manticore 0.3.3, we’re proud to announce support for symbolically executing WebAssembly (WASM) binaries. WASM is a newly standardized programming language that allows web developers to run code with near-native performance directly within the browser. Manticore 0.3.3 can explore all reachable states in a WASM program, and derive the concrete inputs that […]

Themes from Real World Crypto 2020

Over 642 brilliant cryptographic minds gathered for Real World Crypto 2020, an annual conference that brings together cryptographic researchers with developers implementing cryptography in the wild. Overall, RWC 2020 was an impressive conference that demonstrated some amazing work. Here we explore three major themes that emerged: Crypto bugs are everywhere…Whether it’s a somewhat unsurprising Bleichenbacher […]

Exploiting the Windows CryptoAPI Vulnerability

On Tuesday, the NSA announced they had found a critical vulnerability in the certificate validation functionality on Windows 10 and Windows Server 2016/2019. This bug allows attackers to break the validation of trust in a wide variety of contexts, such as HTTPS and code signing. Concerned? Get the important details and see if you’re vulnerable […]