CVE-2020-11620 : What You Need to Know

FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.commons.jelly.impl.Embedded (aka commons-jelly).

Understanding CVE-2020-11620

This CVE involves a vulnerability in FasterXML jackson-databind that affects versions prior to 2.9.10.4.

What is CVE-2020-11620?

The vulnerability in FasterXML jackson-databind 2.x before 2.9.10.4 is due to mishandling the interaction between serialization gadgets and typing, specifically related to org.apache.commons.jelly.impl.Embedded (also known as commons-jelly).

The Impact of CVE-2020-11620

The mishandling of serialization gadgets and typing in FasterXML jackson-databind can potentially lead to security breaches and unauthorized access to sensitive information.

Technical Details of CVE-2020-11620

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The vulnerability arises from the incorrect handling of serialization gadgets and typing, particularly in the context of org.apache.commons.jelly.impl.Embedded (commons-jelly).

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions prior to 2.9.10.4

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating serialization gadgets and typing to execute arbitrary code or access unauthorized information.

Mitigation and Prevention

To address CVE-2020-11620, follow these mitigation strategies:

Immediate Steps to Take

Update FasterXML jackson-databind to version 2.9.10.4 or later.
Monitor for any suspicious activities on the network.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement strong access controls and authentication mechanisms.

Patching and Updates

Stay informed about security updates and patches for FasterXML jackson-databind.