CVE-2023-40037 Apache NiFi: Incomplete Validation of JDBC and JNDI Connection URLs

What is CVE-2023-40037?

CVE-2023-40037 is a medium-severity vulnerability in Apache Nifi, published on 18 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Apache NiFi 1.21.0 through 1.23.0 support JDBC and JNDI JMS access in several Processors and Controller Services with connection URL validation that does not provide sufficient protection against crafted inputs. An authenticated and authorized user can bypass connection URL validation using custom input formatting. The resolution enhances connection URL validation and introduces validation for additional related properties. Upgrading to Apache NiFi 1.23.1 is the recommended mitigation.

Weakness: CWE-697, CWE-184

Which versions are affected by CVE-2023-40037?

9 open source packages ship an affected version, including org.apache.nifi:nifi-dbcp-base, nifi and org.apache.nifi:nifi-dbcp-service-api. It affects 1 product.

Products include Apache Nifi.

How do I fix CVE-2023-40037?

Upgrade org.apache.nifi:nifi-dbcp-base to 1.23.1 or later.

Is CVE-2023-40037 being exploited?

There is no known exploitation of CVE-2023-40037 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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 BIT-nifi-2023-40037, GHSA-23qf-3jf9-h3q9.