CVE-2019-12421
8.8 · HIGHOverview
CVE-2019-12421 is a high-severity vulnerability affecting apache nifi. It was published on November 19, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from apache. Update nifi to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | nifi | 1.0.0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-12421?
CVE-2019-12421 is a high-severity vulnerability affecting apache nifi. It was published on November 19, 2019 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2019-12421?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2019-12421?
Check the references section for vendor advisories and patches from apache. Update nifi to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-12421?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-12421 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2019
View all →An exploitable SQL injection vulnerability exist in YouPHPTube 7.7. When the "VideoTags" plugin is e
A file-upload vulnerability exists in Rukovoditel 2.3.1. index.php?module=configuration/save allows
A use-after-free issue was found in the way the Linux kernel's KVM hypervisor processed posted inter
An error-based SQL injection vulnerability in product/card.php in Dolibarr version 8.0.2 allows remo
SQL injection vulnerability in user/card.php in Dolibarr version 8.0.2 allows remote authenticated u
SAP Enterprise Financial Services (fixed in SAPSCORE 1.13, 1.14, 1.15; S4CORE 1.01, 1.02, 1.03; EA-F
Under some circumstances, masterdata maintenance in SAP BW/4HANA (fixed in DW4CORE version 1.0 (SP08
A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates
An elevation of privilege exists in Windows COM Desktop Broker, aka "Windows COM Elevation of Privil
An elevation of privilege vulnerability exists in Microsoft Edge Browser Broker COM object, aka "Mic
A remote code execution vulnerability exists in Microsoft Word software when it fails to properly ha
D-Link DIR-822 C1 before v3.11B01Beta, DIR-822-US C1 before v3.11B01Beta, DIR-850L A* before v1.21B0