CVE-2023-34036

Forwarded header exploit with Spring HATEOAS on WebFlux

State
Published
Severity
5.3 Medium
Published
Jul 17, 2023
Updated
Oct 30, 2024
Reserved
May 25, 2023

Read the record on cve.org

Description

Reactive web applications that use Spring HATEOAS to produce hypermedia-based responses might be exposed to malicious forwarded headers if they are not behind a trusted proxy that ensures correctness of such headers, or if they don't have anything else in place to handle (and possibly discard) forwarded headers either in WebFlux or at the level of the underlying HTTP server.

For the application to be affected, it needs to satisfy the following requirements:

* It needs to use the reactive web stack (Spring WebFlux) and Spring HATEOAS to create links in hypermedia-based responses. * The application infrastructure does not guard against clients submitting (X-)Forwarded… headers.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nvmware

Weaknesses

  • CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax

Affected Products

ProductVersions
Spring HATEOASSpring
  • 1.5.4 or olderAffected
  • 2.0.4 or olderAffected
  • 2.1.0Affected

References

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