CVE-2019-10080: Improper Restriction of XML External Entity Reference

December 2, 2019 (updated September 24, 2021)

The XMLFileLookupService in NiFi versions 1.3.0 to 1.9.2 allowed trusted users to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE) and reveal information such as the versions of Java, Jersey, and Apache that the NiFI instance uses.

References

github.com/advisories/GHSA-744r-vv2g-2x6g
github.com/apache/nifi/pull/3507
nvd.nist.gov/vuln/detail/CVE-2019-10080

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