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CVE-2020-20136 — Vulnerability in QuantConnect.Common — CVE Details

CRITICAL

QuantConnect Lean vulnerable to insecure deserialization

Published May 24, 2022Updated February 16, 2024Source: osv

Summary

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. One may avoid this issue by only running Lean in an environment where data provided is trusted.

Advisory Timeline

  • First published May 24, 2022 (1602 days ago).
  • Last revised February 16, 2024 — 633 days after initial publication.

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
QuantConnect.Common
nuget
2.4.0.1-unofficialRange-based data available

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-502
    Deserialization of Untrusted DataMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2020-20136?
QuantConnect Lean vulnerable to insecure deserialization This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2020-20136?
CVE-2020-20136 affects QuantConnect.Common. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-20136 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-ww7r-278h-48mh

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