Denial of Service (DoS) Affecting org.eclipse.jetty:jetty-server package, versions [9.3.12,9.4.56) [10.0.0,10.0.24) [11.0.0,11.0.24) [12.0.0,12.0.9)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-JAVA-ORGECLIPSEJETTY-8186142
  • published 15 Oct 2024
  • disclosed 14 Oct 2024
  • credit HRsGIT

How to fix?

Upgrade org.eclipse.jetty:jetty-server to version 9.4.56, 10.0.24, 11.0.24, 12.0.9 or higher.

Overview

org.eclipse.jetty:jetty-server is a lightweight highly scalable java based web server and servlet engine.

Affected versions of this package are vulnerable to Denial of Service (DoS) via the ThreadLimitHandler.getRemote() method. An attacker can exhaust the server's memory and trigger OutofMemory errors by repeatedly sending crafted requests.

Workaround

This vulnerability can be mitigated by not using ThreadLimitHandler and considering the use of QoSHandler instead to artificially limit resource utilization.

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

CVSS Scores

version 4.0
version 3.1
Expand this section

Snyk

Recommended
8.2 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Attack Requirements (AT)
    None
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Confidentiality (VC)
    None
  • Integrity (VI)
    None
  • Availability (VA)
    High
  • Confidentiality (SC)
    None
  • Integrity (SI)
    None
  • Availability (SA)
    None