Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-3276
CVE-2023-3276:
Java vulnerability analysis and mitigation
Overview
CVE-2023-3276 is a vulnerability discovered in Dromara HuTool versions up to 5.8.19, specifically affecting the readBySax function in the XML Parsing Module's XmlUtil.java component. The vulnerability was disclosed in June 2023 and allows for XML external entity reference exploitation (NVD).
Technical details
The vulnerability exists in the readBySax function of XmlUtil.java, which uses SAXParserFactory with default configurations that are susceptible to XXE attacks. The vulnerability has received a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating it can be exploited remotely without authentication (NVD, Exploit Blog).
Impact
The vulnerability enables attackers to perform XML External Entity (XXE) attacks, potentially leading to arbitrary file reading on the affected system. This can result in unauthorized access to sensitive information and system files (Exploit Blog).
Mitigation and workarounds
The vendor was contacted about this vulnerability but did not respond. Users should upgrade to versions newer than 5.8.19 if available, or implement XML parsing security controls such as disabling external entity processing (NVD).
Additional resources
Source: This report was generated using AI
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