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Undertow vulnerable to denial of service

High severity GitHub Reviewed Published Sep 27, 2023 to the GitHub Advisory Database • Updated May 3, 2024

Package

maven io.undertow:undertow-parent (Maven)

Affected versions

< 2.2.24.Final

Patched versions

2.2.24.Final

Description

A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it's possible to bypass the limit by setting the file name in the request to null.

References

Published by the National Vulnerability Database Sep 27, 2023
Published to the GitHub Advisory Database Sep 27, 2023
Reviewed Sep 27, 2023
Last updated May 3, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

1.583%
(88th percentile)

Weaknesses

CVE ID

CVE-2023-3223

GHSA ID

GHSA-65h2-wf7m-q2v8

Source code

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