The Coverity Security Library (CSL) is a lightweight set of escaping routines for fixing cross-site scripting (XSS), SQL injection, and other security defects in ASP.NET web applications.
Here's why it's worth checking out:
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It's secure: We take the security of CSL seriously. Every change is carefully scrutinized through a process that includes manual code review, static analysis, fuzz testing, and unit testing.
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It's convenient: CSL contains escapers for XSS and SQL injection that are missing from standard libraries like System.Web.HttpUtility. We use fast, easy to invoke static methods with short, intuitive names. We also provide Razor bindings to make it easy to use within *.cshtml files.
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It's small: CSL has no external dependencies and is a minimalist library. This means it's fast and does not require any configuration besides incorporating a DLL.
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It's free: CSL is distributed under a BSD-style license. We would appreciate patches be sent back to us but it's not required.
Users of Coverity Security Advisor get remediation guidance based on escaping routines in CSL. However, CSL is a standalone project with no dependencies on Security Advisor.
To contact the Coverity Security Research Labs (SRL), please email us at [email protected].
The Coverity.Security.Escape class contains several escapers for web content. These escaping functions help remedy common defects (mostly cross-site scripting) that occur when the data is inserted into HTML element, HTML attribute values, URI, JavaScript strings, SQL LIKE clauses, etc.
Before using any of these methods, you should understand the context (or nested contexts) in which the data is inserted. An example is available in the repository, and more will be available on our blog.
If you want to test the library to understand how it whistands security attacks, our functional testsuite is the right app to build/deploy/test.
Ready to use it? Fork away, we look forward to your pull requests!
We also have a fully-featured Java version of the Coverity Security Library.
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