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[CVE-2016-5000] XML External Entity (XXE) Vulnerability in Apache POI's XLSX2CSV Example
- To: "security@xxxxxxxxxx" <security@xxxxxxxxxx>, "oss-security@xxxxxxxxxxxxxxxxxx" <oss-security@xxxxxxxxxxxxxxxxxx>, "bugtraq@xxxxxxxxxxxxxxxxx" <bugtraq@xxxxxxxxxxxxxxxxx>, "dev@xxxxxxxxxxxxxx" <dev@xxxxxxxxxxxxxx>, "user@xxxxxxxxxxxxxx" <user@xxxxxxxxxxxxxx>
- Subject: [CVE-2016-5000] XML External Entity (XXE) Vulnerability in Apache POI's XLSX2CSV Example
- From: Tim Allison <tallison@xxxxxxxxxx>
- Date: Fri, 22 Jul 2016 19:18:13 +0000 (UTC)
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.