Denial of Service (DoS) Affecting org.apache.httpcomponents:httpclient package, versions [4.3-alpha1,4.3.6)


0.0
medium
  • Attack Complexity

    Low

  • User Interaction

    Required

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  • snyk-id

    SNYK-JAVA-ORGAPACHEHTTPCOMPONENTS-30647

  • published

    19 Oct 2015

  • disclosed

    19 Oct 2015

  • credit

    Unknown

How to fix?

Upgrade org.apache.httpcomponents:httpclient to version 4.3.6 or higher.

Overview

org.apache.httpcomponents:httpclient is a HttpClient component of the Apache HttpComponents project.

Affected versions of this package are vulnerable to Denial of Service (DoS) via the http/conn/ssl/SSLConnectionSocketFactory.java class. It ignores the http.socket.timeout configuration setting during an SSL handshake, which allows remote attackers to cause a denial of service (HTTPS call hang) via unspecified vectors.

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