Course

Unsafe strings

Confronting the challenge of unsafe strings in Node.js.
1 hour, 3 minutes 4 videos
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Course description

Unsafe strings are the main vector for multiple attacks in Node.js. If impacts are diverse (e.g., SQL injections, directory traversals, remote code execution), the theory behind it is the same. This course will cover multiple attacks based on unsafe strings.

Syllabus

XSS (reflected and stored)

Video - 00:15:00
XSS have been around web applications for a while. This video shows how to avoid most common XSS cases.
Arbitrary OS code execution

Video - 00:15:00
Sometimes, one must start processes on the server from the Node.js process. This comes at a great risk but can be mitigated.
Arbitrary JavaScript code execution

Video - 00:15:00
Executing arbitrary JavaScript is never easy and can lead to dangerous situations. This video shows how to deal with this.
Directory traversal and file inclusion

Video - 00:17:00
This video exposes how to attack the file system of a server through a Node.js application.

Meet the author

Vladimir is a core Node.js collaborator and is involved in most security-related topics of the Node.js project. He has worked for seven years as an Application Security expert at Sqreen and as a Staff Engineer at Datadog. He is now building a new company.

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