QID 375574

QID 375574: RabbitMQ Server Denial Of Service Vulnerability

RabbitMQ is an open source message broker software (sometimes called message-oriented middleware) that originally implemented the Advanced Message Queuing Protocol (AMQP) and has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol (STOMP), Message Queuing Telemetry Transport (MQTT), and other protocols.

CVE-2021-22116 : RabbitMQ all versions prior to 3.8.16 are prone to a denial of service vulnerability due to improper input validation in AMQP 1.0 client connection endpoint..

QID Detection Logic (Authenticated):
On Microsoft Windows systems, the HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RabbitMQ registry key is parsed to check for vulnerable versions of rabbitmq.
On Linux vulnerable version of rabbitmq is detect using dpkg -l rabbitmq-server command

Successful exploitation of this vulnerability may allow an attacker to crash RabbitMQ instance by sending malicious AMQP messages.

  • CVSS V3 rated as Critical - 8.2 severity.
  • CVSS V2 rated as High - 7.8 severity.
    • Solution
    Customers are advised to upgrade to rabbitmq 3.8.16 version or later, that can be dowloaded from here
    More information can be found here.
    Vendor References

    CVEs related to QID 375574

    CVE-2021-22116 |
    Software Advisories
    Advisory ID Software Component Link
    RabbitMQ URL Logo www.rabbitmq.com/download.html
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