Spring Security Advisories

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Directory Traversal in Reactor Netty HTTP Server

HIGH | NOVEMBER 15, 2023 | CVE-2023-34062

Description

In Reactor Netty HTTP Server, a malicious user can send a request using a specially crafted URL that can lead to a directory traversal attack.

Specifically, an application is vulnerable if Reactor Netty HTTP Server is configured to serve static resources.

Affected Spring Products and Versions

Reactor Netty:

  • 1.1.0 - 1.1.12
  • 1.0.38 and earlier

Mitigation

Users of affected versions should upgrade to the corresponding fixed version.
Fix versionAvailability
1.1.13OSS
1.0.39OSS

No further mitigation steps are necessary.

Credit

The issue was identified and responsibly reported by Dr. Michael Ummels from BVU Beratergruppe Verkehr + Umwelt GmbH

References

History

  • 2023-11-15: Initial vulnerability report published.

Reporting a vulnerability

To report a security vulnerability for a project within the Spring portfolio, see the Security Policy

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