Denial of Service (DoS) Affecting org.apache.cxf:cxf-rt-frontend-jaxrs Open this link in a new tab package, versions [,3.1.14) [3.2.0,3.2.1)


0.0
medium
  • Attack Complexity

    Low

  • User Interaction

    Required

  • Availability

    High

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • snyk-id

    SNYK-JAVA-ORGAPACHECXF-32008

  • published

    20 Nov 2017

  • disclosed

    14 Nov 2017

  • credit

    Unknown

How to fix?

Upgrade org.apache.cxf:cxf-rt-frontend-jaxrs to version 3.1.14, 3.2.1 or higher.

Overview

org.apache.cxf:cxf-rt-frontend-jaxrs is an Apache CXF Runtime JAX-RS Frontend

Affected versions of this package are vulnerable to Denial of Service (DoS). Apache CXF supports sending and receiving attachments via either the JAX-WS or JAX-RS specifications. It is possible to craft a message attachment header that could lead to a Denial of Service (DoS) attack on a CXF web service provider. Both JAX-WS and JAX-RS services are vulnerable to this attack. From Apache CXF 3.2.1 and 3.1.14, message attachment headers that are greater than 300 characters will be rejected by default. This value is configurable via the property attachment-max-header-size.

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