Description
Improper Authentication vulnerability in Apache Pulsar WebSocket Proxy allows an attacker to connect to the /pingpong endpoint without authentication. This issue affects Apache Pulsar WebSocket Proxy: from 2.8.0 through 2.8.*, from 2.9.0 through 2.9.*, from 2.10.0 through 2.10.4, from 2.11.0 through 2.11.1, 3.0.0. The known risks include a denial of service due to the WebSocket Proxy accepting any connections, and excessive data transfer due to misuse of the WebSocket ping/pong feature. 2.10 Pulsar WebSocket Proxy users should upgrade to at least 2.10.5. 2.11 Pulsar WebSocket Proxy users should upgrade to at least 2.11.2. 3.0 Pulsar WebSocket Proxy users should upgrade to at least 3.0.1. 3.1 Pulsar WebSocket Proxy users are unaffected. Any users running the Pulsar WebSocket Proxy for 2.8, 2.9, and earlier should upgrade to one of the above patched versions.
Remediation
References
http://www.openwall.com/lists/oss-security/2023/12/20/2
https://lists.apache.org/thread/od0k9zts1toc9h9snbqq4pjpyx28mv4m
Related Vulnerabilities
CVE-2022-23437 Vulnerability in maven package xerces:xercesimpl
CVE-2017-7666 Vulnerability in maven package org.apache.openmeetings:openmeetings-web
CVE-2023-37895 Vulnerability in maven package org.apache.jackrabbit:jackrabbit-standalone
CVE-2020-6464 Vulnerability in maven package org.webjars.npm:electron
CVE-2022-38749 Vulnerability in maven package org.yaml:snakeyaml