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Vulnerability DatabaseCVE-2021-43142

CVE-2021-43142: 
Java vulnerability analysis and mitigation

Overview

An XML External Entity (XXE) vulnerability exists in wuta jox 1.16 in the readObject method in JOXSAXBeanInput. The vulnerability was discovered in 2021 and assigned identifier CVE-2021-43142. The affected component is the jox library version 1.16 and earlier (NVD, MITRE CVE).

Technical details

The vulnerability exists in the readObject method of JOXSAXBeanInput class where the parse method of SAXParser is called to directly parse XML documents without proper validation. This allows processing of malicious XML data that can trigger XXE attacks. The vulnerability has received a CVSS v3.1 Base Score of 9.8 (CRITICAL) with vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (NVD).

Impact

The XXE vulnerability can allow attackers to read arbitrary files on the server, perform server-side request forgery (SSRF), or potentially execute arbitrary code. Given the CVSS score of 9.8, this vulnerability has critical impact on system confidentiality, integrity, and availability (NVD).

Mitigation and workarounds

Users should upgrade to a version newer than jox 1.16. If upgrading is not possible, implement proper XML parsing controls and input validation to prevent XXE attacks (NVD).

Additional resources

Source: This report was generated using AI

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