What is CVE-2023-34212?

CVE-2023-34212 is a medium-severity vulnerability in Apache Nifi, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2023-06-12.

How severe is CVE-2023-34212?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2023-34212 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Nifi

CVE-2023-34212

The JndiJmsConnectionFactoryProvider Controller Service, along with the ConsumeJMS and PublishJMS Processors, in Apache NiFi 1.8.0 through 1.21.0 allow an authenticated and authorized user to configure URL and library properties that enable deserialization of untrusted data from a remote location. The resolution validates the JNDI URL and restricts locations to a set of allowed schemes. You are recommended to upgrade to version 1.22.0 or later which fixes this issue.

Vulnerability class: Insecure Deserialization

EPSS: 0.024 (82.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Apache Nifi
Apache Software Foundation Nifi — versions 1.8.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

References

security@apache.org (release-notes, Release Notes, Vendor Advisory)
security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
security@apache.org (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2023-34212?: CVE-2023-34212 is a medium-severity vulnerability in Apache Nifi, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2023-06-12.
How severe is CVE-2023-34212?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2023-34212 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.