Summary

Responsibly disclosed by @NSEcho.

HTTP API did not enforce an HTTP request body limit, making it vulnerable for DoS attacks with very large messages.

Details

An authenticated user with sufficient credentials can publish a very large messages over the HTTP API and cause target node to be terminated by an "out-of-memory killer"-like mechanism.

A PoC was provided to Team RabbitMQ privately.

Impact

Denial of Service

CRLF injection vulnerability in the management plugin in RabbitMQ 2.1.0 through 3.4.x before 3.4.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the download parameter to api/definitions.

Cross-site scripting (XSS) vulnerability in the management plugin in RabbitMQ 2.1.0 through 3.4.x before 3.4.1 allows remote attackers to inject arbitrary web script or HTML via the path info to api/, which is not properly handled in an error message.