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Vulnerability DatabaseCVE-2021-38555

CVE-2021-38555: 
Java vulnerability analysis and mitigation

Overview

An XML external entity (XXE) injection vulnerability (CVE-2021-38555) was discovered in the Any23 StreamUtils.java file affecting Apache Any23 versions prior to 2.5. The vulnerability was disclosed on September 11, 2021 (NVD).

Technical details

The vulnerability is classified as an XML external entity injection (XXE) issue that allows attackers to interfere with an application's processing of XML data. The severity is rated as CRITICAL with a CVSS 3.1 base score of 9.1 (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N). The vulnerability is tracked under CWE-611 (Improper Restriction of XML External Entity Reference) (NVD).

Impact

When exploited, this vulnerability allows attackers to view files on the application server filesystem and interact with any back-end or external systems that the application itself can access (NVD).

Exploitability

The vulnerability requires no authentication (PR:N) and no user interaction (UI:N) to exploit, with low attack complexity (AC:L) and network-based attack vector (AV:N) (NVD).

Mitigation and workarounds

Users should upgrade to Apache Any23 version 2.5 or later to address this vulnerability (NVD).

Additional resources

Source: This report was generated using AI

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