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Web Application Firewalls
book

Web Application Firewalls

by Chad Russell
April 2018
Intermediate to advanced
72 pages
1h 49m
English
O'Reilly Media, Inc.
Content preview from Web Application Firewalls

Chapter 1. Current Application Threats and Challenges

Code Complexity, Microservices, and Third-Party Libraries

The explosion of open source code has been exponential over the past decade. For developers, this means lots of choices about which libraries to use to minimize development effort. If developers can use a library that manages the ugly underpinnings of encryption, they will. Ultimately developers are tasked with facilitating business outcomes. Any digital plumbing that they can take advantage of in the form of third-party libraries is a boon for productivity.

Savvy attackers are keenly aware of this and are constantly looking for zero-day or even published vulnerabilities that they can exploit in commonly used libraries. OpenSSL is a core example. The OpenSSL library handles core encryption functions, so developers don’t need to. It’s one of the most commonly used third-party libraries. As a result, any vulnerability discovered in such a common core security library carries serious security ramifications.

The Heartbleed Bug was a serious vulnerability in the OpenSSL cryptographic software library. The vulnerability allowed for the theft of information using popular SSLand Transport Layer Security (TLS) protocols that are used to secure much of the communications on the web.

Initially keeping track of these libraries wasn’t that difficult because there was a core set that most developers used. Now, however, it’s estimated that there has been such an exponential increase ...

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Publisher Resources

ISBN: 9781492032311