Denial of Service (DoS)

Affecting org.springframework:spring-web artifact, versions [4.2.0, 4.3.20) || [5.0.0, 5.0.10) || [5.1.0, 5.1.1)

Overview

org.springframework:spring-web provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.

Affected versions of this package are vulnerable to Denial of Service (DoS) attacks. A malicious user could add a range header with a high number of ranges, or with wide ranges that overlap, or both, for a denial of service attack.

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

Remeiation

Upgrade org.springframework:spring-web to versions 4.3.20, 5.0.10, 5.1.1 or higher.

References

Do your applications use this vulnerable package?

CVSS Score

3.7
low severity
  • Attack Vector
    Network
  • Attack Complexity
    High
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    None
  • Integrity
    None
  • Availability
    Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Credit
Nicholas Starke
CVE
CVE-2018-15756
CWE
CWE-400
Snyk ID
SNYK-JAVA-ORGSPRINGFRAMEWORK-72470
Disclosed
03 Oct, 2018
Published
18 Oct, 2018