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 Ben Johnson
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Profile of Ben Johnson

Co-founder and CTO, Obsidian Security
News & Commentary Posts: 7

Ben Johnson is CTO and co-founder of Obsidian Security. Prior to founding Obsidian, he co-founded Carbon Black and most recently served as the company's chief security strategist. As the company's original CTO, he led efforts to create the powerful capabilities that helped define the next-generation endpoint security space. Prior to Carbon Black, Ben was an NSA computer scientist and later worked as a cyber engineer in an advanced intrusion operations division for the intelligence community.

Johnson has extensive experience building complex systems for environments where speed and reliability are paramount. His background also includes a great deal of technical "agility," having worked on advanced operational teams supporting US national security missions and writing complex calculation engines for the financial sector.

Johnson earned a bachelor's degree in computer science from the University of Chicago and a master's degree in computer science from Johns Hopkins University. He also taught "Entrepreneurship in Technology" in the Masters Program of Computer Science at the University of Chicago in 2016 and 2017.

Articles by Ben Johnson
posted in September 2017
COVID-19: Latest Security News & Commentary
Dark Reading Staff 11/19/2020
New Proposed DNS Security Features Released
Kelly Jackson Higgins, Executive Editor at Dark Reading,  11/19/2020
How to Identify Cobalt Strike on Your Network
Zohar Buber, Security Analyst,  11/18/2020
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CVE-2020-29071
PUBLISHED: 2020-11-25
An XSS issue was found in the Shares feature of LiquidFiles before 3.3.19. The issue arises from the insecure rendering of HTML files uploaded to the platform as attachments, when the -htmlview URL is directly accessed. The impact ranges from executing commands as root on the server to retrieving se...
CVE-2020-29072
PUBLISHED: 2020-11-25
A Cross-Site Script Inclusion vulnerability was found on LiquidFiles before 3.3.19. This client-side attack requires user interaction (opening a link) and successful exploitation could lead to encrypted e-mail content leakage via messages/sent?format=js and popup?format=js.
CVE-2020-26241
PUBLISHED: 2020-11-25
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. This is a Consensus vulnerability in Geth before version 1.9.17 which can be used to cause a chain-split where vulnerable nodes reject the canonical chain. Geth's pre-compiled dataCopy (at 0x00...04) co...
CVE-2020-26242
PUBLISHED: 2020-11-25
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.18, there is a Denial-of-service (crash) during block processing. This is fixed in 1.9.18.
CVE-2020-26240
PUBLISHED: 2020-11-25
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on...