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Deserialization of untrusted data in FasterXML jackson-databind

Critical severity GitHub Reviewed Published Aug 1, 2019 to the GitHub Advisory Database • Updated Sep 13, 2023

Package

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

Affected versions

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

Patched versions

2.9.9.2
2.8.11.4
2.7.9.6

Description

SubTypeValidator.java in FasterXML jackson-databind before 2.9.9.2, 2.8.11.4, and 2.7.9.6 mishandles default typing when ehcache is used (because of net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup), leading to remote code execution.

References

Published by the National Vulnerability Database Jul 29, 2019
Reviewed Aug 1, 2019
Published to the GitHub Advisory Database Aug 1, 2019
Last updated Sep 13, 2023

Severity

Critical

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
High
Availability
High

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:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(80th percentile)

Weaknesses

Improperly Controlled Modification of Dynamically-Determined Object Attributes

The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified. Learn more on MITRE.

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Learn more on MITRE.

CVE ID

CVE-2019-14379

GHSA ID

GHSA-6fpp-rgj9-8rwc

Source code

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