CVE-2019-12421 describes a server-side authentication bypass vulnerability in Apache NiFi versions 1.0.0 through 1.9.2, specifically when not using PKI for authentication. After a user logs out, their client-side token is invalidated, but the server-side token remains active for up to 12 hours, allowing API requests to be made using the stale token. This vulnerability carries a high CVSS score of 8.8, indicating a severe risk with high impact on confidentiality, integrity, and availability, and can be exploited remotely with low privileges and no user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0.0, <= 1.9.2CPE matchmatch criteria | cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.