Denial of Service (DoS) Affecting commons-fileupload:commons-fileupload package, versions [1.3,1.3.2)


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 4.28% (93rd percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-JAVA-COMMONSFILEUPLOAD-30082
  • published 25 Dec 2016
  • disclosed 22 Jun 2016
  • credit TERASOLUNA Framework Development Team

How to fix?

Upgrade commons-fileupload:commons-fileupload to version 1.3.2 or higher.

Overview

commons-fileupload:commons-fileupload is a component that provides a simple yet flexible means of adding support for multipart file upload functionality to servlets and web applications.

Affected versions of this package are vulnerable to Denial of Service (DoS). It allows remote attackers to cause a denial of service (CPU consumption) via a long boundary string.

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