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Polymorphic deserialization of malicious object in jackson-databind

High severity GitHub Reviewed Published May 15, 2020 to the GitHub Advisory Database • Updated Sep 14, 2023

Package

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

Affected versions

<= 2.6.7.2
>= 2.9.0, < 2.9.10
>= 2.7.0, <= 2.8.11.4

Patched versions

2.6.7.3
2.9.10
2.8.11.5

Description

A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5, and 2.6.7.3, where it would permit polymorphic deserialization of a malicious object using commons-configuration 1 and 2 JNDI classes. An attacker could use this flaw to execute arbitrary code.

References

Published by the National Vulnerability Database Mar 2, 2020
Reviewed Apr 23, 2020
Published to the GitHub Advisory Database May 15, 2020
Last updated Sep 14, 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.331%
(71st percentile)

Weaknesses

CVE ID

CVE-2019-14892

GHSA ID

GHSA-cf6r-3wgc-h863

Source code

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