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Posted to dev@poi.apache.org by Tim Allison <ta...@apache.org> on 2016/07/22 19:18:13 UTC
[CVE-2016-5000] XML External Entity (XXE) Vulnerability in Apache
POI's XLSX2CSV Example
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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