CVE-2023-37544

Apache Pulsar WebSocket Proxy: Improper Authentication for WebSocket Proxy Endpoint Allows DoS

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Pulsar WebSocket Proxy
Published at:
Updated at:

References

Link Tags
https://lists.apache.org/thread/od0k9zts1toc9h9snbqq4pjpyx28mv4m vendor advisory mailing list
http://www.openwall.com/lists/oss-security/2023/12/20/2 mailing list

Frequently Asked Questions

What is the severity of CVE-2023-37544?
CVE-2023-37544 has been scored as a high severity vulnerability.
How to fix CVE-2023-37544?
To fix CVE-2023-37544, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-37544 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-37544 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-37544?
CVE-2023-37544 affects Apache Software Foundation Apache Pulsar WebSocket Proxy.
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