Description
When creating or updating credentials for single-user access, Apache NiFi wrote a copy of the Login Identity Providers configuration to the operating system temporary directory. On most platforms, the operating system temporary directory has global read permissions. NiFi immediately moved the temporary file to the final configuration directory, which significantly limited the window of opportunity for access. NiFi 1.16.0 includes updates to replace the Login Identity Providers configuration without writing a file to the operating system temporary directory.
Remediation
References
http://www.openwall.com/lists/oss-security/2022/04/06/2
https://nifi.apache.org/security.html#CVE-2022-26850
Related Vulnerabilities
CVE-2020-5219 Vulnerability in npm package angular-expressions
CVE-2022-43411 Vulnerability in maven package org.jenkins-ci.plugins:gitlab-plugin
CVE-2019-1003027 Vulnerability in maven package hudson.plugins.octopusdeploy:octopusdeploy
CVE-2019-12402 Vulnerability in maven package org.apache.commons:commons-compress
CVE-2021-3859 Vulnerability in maven package io.undertow:undertow-core