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Coverity Security Library (.NET Standard Fork)

Original .Net Repository for Coverity.Security

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:

  • 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.

  • 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.

  • 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.

  • 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 srl@coverity.com.

Escape

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 original 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!

Java version

We also have a fully-featured Java version of the Coverity Security Library.

License

Copyright (c) 2012-2015, Coverity, Inc. 
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this 
list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.
- Neither the name of Coverity, Inc. nor the names of its contributors may be used
to endorse or promote products derived from this software without specific prior 
written permission from Coverity, Inc.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND INFRINGEMENT ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR  CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN CONTRACT,  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.

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Coverity Security Library (CSL) is a lightweight set of escaping routines for fixing cross-site scripting (XSS), SQL injection, and other security defect. This is the version for ASP.NET.

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