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Apache NiFi user log out issue

High severity GitHub Reviewed Published Dec 2, 2019 to the GitHub Advisory Database • Updated Sep 27, 2023

Package

maven org.apache.nifi:nifi-web-api (Maven)

Affected versions

>= 1.3.0, < 1.10.0

Patched versions

1.10.0
maven org.apache.nifi:nifi-web-security (Maven)
>= 1.3.0, < 1.10.0
1.10.0

Description

When using an authentication mechanism other than PKI, when the user clicks Log Out in NiFi versions 1.0.0 to 1.9.2, NiFi invalidates the authentication token on the client side but not on the server side. This permits the user's client-side token to be used for up to 12 hours after logging out to make API requests to NiFi.

References

Reviewed Dec 2, 2019
Published to the GitHub Advisory Database Dec 2, 2019
Last updated Sep 27, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.078%
(35th percentile)

Weaknesses

CVE ID

CVE-2019-12421

GHSA ID

GHSA-fmqw-vqh5-cwq9

Source code

No known source code
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