CVE-2019-12421 Apache NiFi user log out issue

What is CVE-2019-12421?

CVE-2019-12421 is a high-severity vulnerability in Apache Nifi, published on 19 Nov 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-613

Which versions are affected by CVE-2019-12421?

4 open source packages ship an affected version, including org.apache.nifi:nifi-web-api and org.apache.nifi:nifi-web-security. It affects 1 product.

Products include Apache Nifi.

How do I fix CVE-2019-12421?

Upgrade org.apache.nifi:nifi-web-api to 1.10.0 or later.

Is CVE-2019-12421 being exploited?

There is no known exploitation of CVE-2019-12421 in the wild and no public exploit code.

Other vulnerabilities in Apache Nifi

• CVE-2018-1309 Improper Restriction of XML External Entity Reference in Apache NiFi Critical 9.8
• CVE-2017-15697 Apache NiFi XSS issue in context path handling Critical 9.8
• CVE-2017-5636 Injection in Apache NiFi Critical 9.8
• CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests High 8.8
• CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources High 8.8

All Apache Nifi vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fmqw-vqh5-cwq9.