CVE-2023-34062
Java vulnerability analysis and mitigation

Overview

A critical directory traversal vulnerability was discovered in Reactor Netty HTTP Server, identified as CVE-2023-34062. The vulnerability affects versions 1.1.x prior to 1.1.13 and versions 1.0.x prior to 1.0.39. The issue specifically impacts applications where Reactor Netty HTTP Server is configured to serve static resources, allowing malicious users to send specially crafted URLs that can lead to directory traversal attacks (Spring Advisory, Security Online).

Technical details

The vulnerability is classified with a CVSS v3.1 Base Score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The issue is categorized as CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), allowing attackers to manipulate URLs in a way that can bypass security restrictions and traverse the filesystem of the vulnerable system (NVD).

Impact

The vulnerability could allow attackers to gain unauthorized access to sensitive files and potentially compromise affected systems. Successful exploitation may lead to access and theft of sensitive files, including configuration files and sensitive data (Security Online).

Mitigation and workarounds

Users of affected versions should upgrade to the patched versions: Reactor Netty 1.1.x users should upgrade to version 1.1.13, while 1.0.x users should upgrade to version 1.0.39. No additional steps are necessary after applying the appropriate upgrade (Spring Advisory).

Additional resources


SourceThis report was generated using AI

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