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Deserialization of untrusted data in FasterXML jackson-databind

High severity GitHub Reviewed Published Aug 1, 2019 to the GitHub Advisory Database • Updated Nov 27, 2023

Package

maven com.fasterxml.jackson.core:jackson-databind (Maven)

Affected versions

>= 2.9.0, < 2.9.9.2
>= 2.7.0, < 2.7.9.6
< 2.6.7.3
>= 2.8.0, < 2.8.11.4

Patched versions

2.9.9.2
2.7.9.6
2.6.7.3
2.8.11.4

Description

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9.2, 2.8.11.4, 2.7.9.6, and 2.6.7.3. This occurs when Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has the logback jar in the classpath.

References

Published by the National Vulnerability Database Jul 30, 2019
Reviewed Aug 1, 2019
Published to the GitHub Advisory Database Aug 1, 2019
Last updated Nov 27, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.165%
(54th percentile)

Weaknesses

CVE ID

CVE-2019-14439

GHSA ID

GHSA-gwp4-hfv6-p7hw

Source code

Credits

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