Polymorphic Deserialization Flaw in FasterXML Jackson Databind
CVE-2019-14893

7.5HIGH

Key Information:

Vendor
Red Hat
Status
Jackson-databind
Vendor
CVE Published:
2 March 2020

Summary

A security vulnerability exists in FasterXML's jackson-databind that allows for the polymorphic deserialization of malicious objects. This flaw can be exploited when the ObjectMapper is set up with methods such as enableDefaultTyping() or when using the @JsonTypeInfo annotations with Id.CLASS or Id.MINIMAL_CLASS. Attackers can leverage this weakness to instantiate arbitrary objects from unsafe sources, leading to the potential execution of malicious code in impacted applications.

Affected Version(s)

jackson-databind 2.9.10

jackson-databind 2.10.0

References

https://access.redhat.com/errata/RHSA-2020:0729
vendor-advisoryx_refsource_REDHAT
https://www.oracle.com/security-alerts/cpujul2020.html
x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14893
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.