CVE-2020-8840 : What You Need to Know

FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by org.apache.xbean.propertyeditor.JndiConverter.

Understanding CVE-2020-8840

This CVE involves a vulnerability in FasterXML jackson-databind versions 2.0.0 through 2.9.10.2.

What is CVE-2020-8840?

CVE-2020-8840 is a security vulnerability in FasterXML jackson-databind that allows attackers to bypass certain security restrictions.

The Impact of CVE-2020-8840

The vulnerability can be exploited to execute arbitrary code, leading to potential unauthorized access and data manipulation.

Technical Details of CVE-2020-8840

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

Vulnerability Description

FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks specific xbean-reflect/JNDI blocking, enabling org.apache.xbean.propertyeditor.JndiConverter exploitation.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions: 2.0.0 through 2.9.10.2

Exploitation Mechanism

Attackers can exploit this vulnerability to execute arbitrary code by leveraging the lack of xbean-reflect/JNDI blocking.

Mitigation and Prevention

Protecting systems from CVE-2020-8840 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement network controls to restrict access to vulnerable systems.
Monitor for any unusual activities that could indicate exploitation.

Long-Term Security Practices

Regularly update software and libraries to the latest secure versions.
Conduct security assessments and penetration testing to identify vulnerabilities.
Educate users and administrators about secure coding practices.

Patching and Updates

Ensure that all systems running FasterXML jackson-databind are updated to versions that address CVE-2020-8840.