Description
An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.
Remediation
References
https://nifi.apache.org/security.html#CVE-2017-12623
Related Vulnerabilities
CVE-2022-45379 Vulnerability in maven package org.jenkins-ci.plugins:script-security
CVE-2018-14731 Vulnerability in npm package parcel-bundler
CVE-2021-20222 Vulnerability in maven package org.keycloak:keycloak-core
CVE-2018-1062 Vulnerability in maven package org.ovirt.engine.core:vdsbroker
CVE-2018-1999029 Vulnerability in maven package org.jenkins-ci.plugins:shelve-project-plugin