Denial of Service (DoS) Affecting org.springframework.amqp:spring-amqp package, versions [2.3.0,2.3.11)[,2.2.19)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (37th percentile)

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  • Snyk IDSNYK-JAVA-ORGSPRINGFRAMEWORKAMQP-1767775
  • published27 Oct 2021
  • disclosed27 Oct 2021
  • creditr00t4dm Cloud-Penetrating Arrow Lab of Meituan Corp Information Security Department.

Introduced: 27 Oct 2021

CVE-2021-22097  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade org.springframework.amqp:spring-amqp to version 2.3.11, 2.2.19 or higher.

Overview

org.springframework.amqp:spring-amqp is a package that provides support for using Spring and Java with AMQP 0.9.1, and in particular RabbitMQ.

Affected versions of this package are vulnerable to Denial of Service (DoS) by constructing a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called.

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

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