CVE-2020-20136 Explained : Impact and Mitigation

QuantConnect Lean versions from 2.3.0.0 to 2.4.0.1 are affected by an insecure deserialization vulnerability due to insecure configuration of TypeNameHandling property in Json.NET library.

Understanding CVE-2020-20136

QuantConnect Lean versions 2.3.0.0 to 2.4.0.1 are susceptible to an insecure deserialization vulnerability.

What is CVE-2020-20136?

This CVE identifies a security flaw in QuantConnect Lean versions that allows attackers to exploit an insecure deserialization vulnerability.

The Impact of CVE-2020-20136

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

Technical Details of CVE-2020-20136

QuantConnect Lean versions 2.3.0.0 to 2.4.0.1 are affected by a specific vulnerability.

Vulnerability Description

The insecure deserialization vulnerability arises from the improper configuration of the TypeNameHandling property in the Json.NET library.

Affected Systems and Versions

Product: QuantConnect Lean
Versions: 2.3.0.0 to 2.4.0.1

Exploitation Mechanism

Attackers can exploit this vulnerability to execute arbitrary code by manipulating the deserialization process.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-20136 vulnerability.

Immediate Steps to Take

Update QuantConnect Lean to a patched version that addresses the insecure deserialization issue.
Implement proper input validation to mitigate the risk of deserialization attacks.

Long-Term Security Practices

Regularly monitor and apply security updates to all software components.
Conduct security assessments to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and patches released by QuantConnect Lean.