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-2019-13127 Vulnerability in maven package org.webjars.bowergithub.jgraph:mxgraph
CVE-2021-22132 Vulnerability in maven package org.elasticsearch:elasticsearch
CVE-2020-12265 Vulnerability in maven package org.webjars:decompress
CVE-2023-40341 Vulnerability in maven package io.jenkins.blueocean:blueocean