CVE-2021-20190 : What You Need to Know

A flaw was found in jackson-databind before 2.9.10.7, where FasterXML mishandles the interaction between serialization gadgets and typing, posing a threat to data confidentiality, integrity, and system availability.

Understanding CVE-2021-20190

This section delves into the details of the CVE-2021-20190 vulnerability.

What is CVE-2021-20190?

The CVE-2021-20190 vulnerability is identified in jackson-databind before version 2.9.10.7. It involves FasterXML mishandling the interaction between serialization gadgets and typing, potentially compromising data confidentiality, integrity, and system availability.

The Impact of CVE-2021-20190

The highest risk associated with CVE-2021-20190 is the jeopardy it poses to data confidentiality, integrity, and system availability.

Technical Details of CVE-2021-20190

This section presents the technical aspects of the CVE-2021-20190 vulnerability.

Vulnerability Description

The vulnerability stems from FasterXML's mishandling of the interaction between serialization gadgets and typing.

Affected Systems and Versions

The flaw impacts jackson-databind versions before 2.9.10.7.

Exploitation Mechanism

Attackers can exploit this vulnerability to compromise data confidentiality and system integrity.

Mitigation and Prevention

Here, we outline the steps to mitigate and prevent the CVE-2021-20190 vulnerability.

Immediate Steps to Take

Update the affected jackson-databind to version 2.9.10.7 or apply relevant patches to address the vulnerability immediately.

Long-Term Security Practices

Implement secure coding practices and regular security assessments to safeguard against similar vulnerabilities.

Patching and Updates

Stay informed about security updates and promptly apply patches to ensure protection against known vulnerabilities.