Nicolas Bidron
A Brief Review of Bitcoin Locking Scripts and Ordinals
This article is an attempt at cataloging all the types of bitcoin transaction locking scripts, their prevalence and their security implications. The data presented in this article was lifted directly from the bitcoin blockchain, which required custom code to quickly iterate over the entire blockchain (over 450 GB at the…
June 8, 2023
10 mins read
Updated: Technical Advisory and Proofs of Concept – Multiple Vulnerabilities in U-Boot (CVE-2022-30790, CVE-2022-30552)
By Nicolas Bidron, and Nicolas Guigo. [Editor’s note: This is an updated/expanded version of these advisories which we originally published on June 3 2022.] U-boot is a popular boot loader for embedded systems with implementations for a large number of architectures and prominent in most linux based embedded systems such…
June 16, 2022
10 mins read
Technical Advisory – Multiple Vulnerabilities in U-Boot (CVE-2022-30790, CVE-2022-30552)
By Nicolas Bidron, and Nicolas Guigo. U-boot is a popular boot loader for embedded systems with implementations for a large number of architectures and prominent in most Linux based embedded systems such as ChromeOS and Android Devices. Two vulnerabilities were uncovered in the IP Defragmentation algorithm implemented in U-Boot, with…
June 3, 2022
6 mins read
Technical Advisory – Multiple Vulnerabilities in Victure WR1200 WiFi Router (CVE-2021-43282, CVE-2021-43283, CVE-2021-43284)
Victure’s WR1200 WiFi router, also sometimes referred to as AC1200, was found to have multiple vulnerabilities exposing its owners to potential intrusion in their local WiFi network and complete overtake of the device. Three vulnerabilities were uncovered, with links to the associated technical advisories below: Technical Advisory – Default WiFi…