Auth bypass in Eclipse Vert.x Stomp

CVE-2023-32081

Vert.x STOMP is a vert.x implementation of the STOMP specification that provides a STOMP server and client. From versions 3.1.0 until 3.9.16 and 4.0.0 until 4.4.2, a Vert.x STOMP server processes client STOMP frames without checking that the client send an initial CONNECT frame replied with a successful CONNECTED frame. The client can subscribe to a destination or publish message without prior authentication. Any Vert.x STOMP server configured with an authentication handler is impacted. The issue is patched in Vert.x 3.9.16 and 4.4.2. There are no trivial workarounds.

Vulnerability class: Broken Authentication

EPSS: 0.005 (41.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-32081?
CVE-2023-32081 is a medium-severity vulnerability in Eclipse Vert.x Stomp, classified under Improper Authentication. CVSS score: 6.5/10. Published 2023-05-12.
How severe is CVE-2023-32081?
Medium severity. CVSS v3 base score is 6.5 out of 10.