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CVE-2019-16943

9.8 · CRITICAL

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10.

Published Oct 1, 2019CWE-502EPSS 4.90%

Overview

CVE-2019-16943 is a critical-severity vulnerability. It was published on October 1, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.0.0 through 2.9.10. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the p6spy (3.8.6) jar in the classpath, and an attacker can find an RMI service endpoint to access, it is possible to make the service execute a malicious payload. This issue exists because of com.p6spy.engine.spy.P6DataSource mishandling.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refaccess.redhat.com/errata/RHSA-2020:0159Refaccess.redhat.com/errata/RHSA-2020:0160Refaccess.redhat.com/errata/RHSA-2020:0161Refaccess.redhat.com/errata/RHSA-2020:0164Refaccess.redhat.com/errata/RHSA-2020:0445GitHubgithub.com/FasterXML/jackson-databind/issues/2478Reflists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3EReflists.apache.org/thread.html/5ec8d8d485c2c8ac55ea425f4cd96596ef37312532712639712ebcdd%40%3Ccommits.iceberg.apache.org%3EReflists.apache.org/thread.html/6788e4c991f75b89d290ad06b463fcd30bcae99fee610345a35b7bc6%40%3Cissues.iceberg.apache.org%3EReflists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E

How CyberStrike helps

Frequently asked questions

What is CVE-2019-16943?

CVE-2019-16943 is a critical-severity vulnerability. It was published on October 1, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2019-16943?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-16943?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2019-16943?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-16943 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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