Denial of Service (DoS) Affecting i18n Open this link in a new tab package, versions [,2.1.15)


0.0
high
  • Attack Complexity

    Low

  • Availability

    High

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  • snyk-id

    SNYK-DOTNET-I18N-1050179

  • published

    11 Dec 2020

  • disclosed

    10 Dec 2020

  • credit

    Chris Stephens

How to fix?

Upgrade i18n to version 2.1.15 or higher.

Overview

i18n is a smart internationalization for ASP.NET-based web applications. The i18n library is designed to replace the use of .NET resources in favor of an easier, globally-recognized standard for localizing ASP.NET-based web applications. Supports ASP.NET MVC, ASP.NET Web API, ASP.NET WebMatrix / Web Pages and ASP.NET Web Forms.

Affected versions of this package are vulnerable to Denial of Service (DoS). Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package