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Akshay 'Ax' Sharma

Endorsed an Exceptional Talent (‘a recognized leader’) by the British Government, Akshay aka Ax is a Security Researcher at Sonatype and Engineer who holds passion for perpetual learning. In his spare time, he loves exploiting vulnerabilities ethically and educating a wide range of audiences.

Inside the “fallguys” malware that steals your browsing data and gaming IMs; Continued attack on open source software

By Akshay 'Ax' Sharma on September 02, 2020 vulnerabilities
This weekend a malicious component called “fallguys” was discovered on npm impersonating an API for the widely popular video game, Fall Guys: Ultimate Knockout. Its actual purpose, however, was
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From Prototype Pollution to full-on remote code execution, how can adversaries exploit npm modules?

By Akshay 'Ax' Sharma on August 19, 2020 vulnerabilities
August's Nexus Intelligence Insight looks at the NodeJS component express-fileupload which now has a critical Prototype Pollution vulnerability.
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Nexus Intelligence Insights:CVE-2020-13935 - Apache Tomcat Websocket - Denial of Service (DoS)

By Akshay 'Ax' Sharma on July 29, 2020 vulnerabilities
July’s Nexus Intelligence Insight takes a deep dive into a Denial of Service (DoS) vulnerability impacting the popular Apache Tomcat Websocket component.
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Nexus Intelligence Insights: xlsx aka SheetJS - Regular Expression Denial of Service (ReDoS) and sonatype-2018-0622

By Akshay 'Ax' Sharma on May 06, 2020 vulnerabilities
The ReDoS vulnerability impacting the popular npm component SheetJS, also known as “xlsx,” was thought to be remedied through a fix, but no, not so fast.
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Nexus Intelligence Insights: Protect Your Bitcoin from 700+ Malicious RubyGems with sonatype-2020-0196

By Akshay 'Ax' Sharma on April 23, 2020 vulnerability
Crafty attackers take advantage of the open source software supply chain through typographical errors. Not even the most sophisticated devs are immune.
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Nexus Intelligence Insights: CVE-2019-3773 Spring Web Services XML External Entity Injection (XXE)

By Akshay 'Ax' Sharma on March 18, 2020 vulnerabilities
This Nexus Intelligence Insight covers CVE-2019-3773: cross site scripting vulnerabilities in Spring Web Services XML External Entity Injection (XXE).
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Nexus Intelligence Insights: What's in a Ghostcat? CVE-2020-1938 Apache Tomcat - Local File Inclusion Potentially Leads to RCE

By Akshay 'Ax' Sharma on March 09, 2020 vulnerabilities
Ghostcat manipulates the widely used Apache Tomcat web server. No version of Tomcat released in the last 13 years is immune, unless properly patched.
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What Does the New CVSS 3.1 Scoring Model Mean for Enterprise Security?

By Akshay 'Ax' Sharma on February 17, 2020 vulnerabilities
Learn how CVSS 3.1 is different from earlier versions and why changes to this security rating matters.
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Nexus Intelligence Insights CVE-2020-2100: Jenkins - UDP Amplification Reflection Attack Leading to Distributed Denial of Service (DDoS)

By Akshay 'Ax' Sharma on February 12, 2020 vulnerabilities
CVE-2020-2100 takes advantage of the fact that, by default, both UDP multicast/broadcast and DNS multicast traffic is enabled on Jenkins. Here's what to do.
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