CVE-2020-1942 : Vulnerability Insights and Analysis

Apache NiFi 0.0.1 to 1.11.0 contains a vulnerability that may lead to information disclosure.

Understanding CVE-2020-1942

Apache NiFi vulnerability allowing potential plaintext exposure of sensitive values.

What is CVE-2020-1942?

An issue in Apache NiFi versions 0.0.1 to 1.11.0 where sensitive property descriptor values could be exposed in plaintext in certain cluster join scenarios.

The Impact of CVE-2020-1942

Sensitive values may be revealed due to flow fingerprint generation, posing a risk to data confidentiality.

Technical Details of CVE-2020-1942

Details of the vulnerability in Apache NiFi.

Vulnerability Description

The flow fingerprint factory creates fingerprints that might include sensitive property values, potentially exposing them.

Affected Systems and Versions

Product: Apache NiFi
Vendor: n/a
Versions affected: Apache NiFi 0.0.1 to 1.11.0

Exploitation Mechanism

Cluster join attempts with non-inheritable flow may lead to exposing local and cluster flow fingerprints.

Mitigation and Prevention

Actions to address and prevent the CVE-2020-1942 vulnerability.

Immediate Steps to Take

Upgrade Apache NiFi to a non-vulnerable version.
Monitor and restrict access to sensitive property descriptors.
Apply access controls to cluster flows to prevent plaintext exposure.

Long-Term Security Practices

Implement encryption mechanisms for sensitive data in Apache NiFi.
Regularly review and update security configurations to safeguard against information disclosure.

Patching and Updates

Stay informed about security updates and patches released by Apache for Apache NiFi.