SARA / Free Tools / CVE / CVE-2019-12415

CVE-2019-12415 — In Apache POI up to 4

In Apache POI up to 4.1.0, when using the tool XSSFExportToXml to convert user-provided Microsoft Excel documents, a specially crafted document can allow an attacker to read files from the local filesystem or from internal network resources via XML External Entity (XXE) Processin

CVSS

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EPSS

0.02% (top 94.30%)

CWE

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Published

2019-10-23T19:27:20.000Z

Last modified

2024-08-04T23:17:40.071Z

CVSS vector

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01What is this vulnerability?

02Affected products

Vendor	Product	Versions
n	a / Apache POI	Apache POI up to 4.1.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2019-10-23T19:27:20.000Z
Last modified: 2024-08-04T23:17:40.071Z

09References

lists.apache.org — https://lists.apache.org/thread.html/2ac0327748de0c2b3c1c012481b79936797c711724e…
lists.apache.org — https://lists.apache.org/thread.html/895164e03a3c327449069e2fd6ced0367561878b3ae…
lists.apache.org — https://lists.apache.org/thread.html/d88b8823867033514d7ec05d66f88c70dc207604d3d…
lists.apache.org — https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133dee…
www.oracle.com — https://www.oracle.com/security-alerts/cpuapr2020.html
www.oracle.com — https://www.oracle.com/security-alerts/cpujul2020.html
www.oracle.com — https://www.oracle.com/security-alerts/cpujan2020.html
lists.apache.org — https://lists.apache.org/thread.html/13a54b6a03369cfb418a699180ffb83bd727320b6dd…
www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2020.html
www.oracle.com — https://www.oracle.com/security-alerts/cpujan2021.html
www.oracle.com — https://www.oracle.com/security-alerts/cpuApr2021.html
www.oracle.com — https://www.oracle.com//security-alerts/cpujul2021.html
www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2021.html

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