[CVE-2016-5000] XML External Entity (XXE) Vulnerability in Apache- POI's XLSX2CSV Example

From: Tim Allison <tallison@apache.org>
To: security@apache.org <security@apache.org>,oss-security@lists.openwall.com <oss-security@lists.openwall.com>,bugtraq@securityfocus.com <bugtraq@securityfocus.com>,dev@poi.apache.org <dev@poi.apache.org>,user@poi.apache.org <user@poi.apache.org>
Cc:
Subject: [CVE-2016-5000] XML External Entity (XXE) Vulnerability in Apache- POI's XLSX2CSV Example
Date:


CVE-2016-5000: XML External Entity (XXE) Vulnerability in Apache POI's XLSX2CSV Example 

Severity: Important 

Vendor: The Apache Software Foundation 

Versions Affected: POI 3.5-3.13 

Description: 

Apache POI's XLSX2CSV example uses Java's XML components to parse OpenXML files. Applications and users that use XLSX2CSV and accept such files from end-users are vulnerable to XML External Entity (XXE) attacks, which allow remote attackers to bypass security restrictions and read arbitrary files via a crafted OpenXML document that provides an XML external entity declaration in conjunction with an entity reference.

Mitigation: Upgrade to 3.14 or higher 


Credit: This issue was discovered by Mauro Gentile of Minded Security.





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