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CVE-2023-34062: CVE-2023-34062: Directory Traversal in Reactor Netty HTTP Server

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, 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.

CVE
#vulnerability

Description

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, 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 to 1.1.12
    • 1.0.0 to 1.0.38
    • And older unsupported versions

Mitigation

Users of affected versions should apply the following mitigation. 1.1.x users should upgrade to 1.1.13. 1.0.x users should upgrade to 1.0.39. No other steps are necessary. Releases that have fixed this issue include:

  • Reactor Netty
    • 1.1.13
    • 1.0.39

Credit

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

References

  • https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N&version=3.1

History

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

Related news

GHSA-xjhv-p3fv-x24r: 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

In Reactor Netty HTTP Server, versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39, 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.

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