CVE-2022-23535 : What You Need to Know

LiteDB is a small, fast, and lightweight .NET NoSQL embedded database that was found to have a vulnerability related to Deserialization of Untrusted Data in versions prior to 5.0.13.

Understanding CVE-2022-23535

LiteDB's vulnerability allows attackers to potentially execute arbitrary code through deserialization of untrusted data, posing a high security risk to affected systems.

What is CVE-2022-23535?

LiteDB versions before 5.0.13 are susceptible to Deserialization of Untrusted Data, where improper handling of JSON documents can lead to the loading of unsafe objects, allowing attackers to exploit the system.

The Impact of CVE-2022-23535

The impact of this CVE is rated as high with a CVSS base score of 7.3, affecting confidentiality, integrity, and availability of the system. Attackers with network access can potentially exploit this vulnerability without any special privileges.

Technical Details of CVE-2022-23535

LiteDB's vulnerability is linked to the deserialization process, where

BsonMapper

may load unsafe objects when converting JSON to POCO classes. The issue is addressed in version 5.0.13, but caution is advised when deserializing

Object

type data.

Vulnerability Description

LiteDB's deserialization flaw allows attackers to inject malicious objects into the system, potentially leading to arbitrary code execution. The fix includes basic precautions, with further enhancements planned in future releases.

Affected Systems and Versions

LiteDB versions prior to 5.0.13 are impacted by this vulnerability, making it crucial for users to update to the latest patched version to mitigate the risk effectively.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating JSON data to load unsafe objects during the deserialization process, initiating malicious activities within the system.

Mitigation and Prevention

To address CVE-2022-23535, users are advised to take immediate steps to secure their systems and adopt long-term security practices.

Immediate Steps to Take

Update LiteDB to version 5.0.13 to apply necessary fixes and prevent exploitation of the vulnerability.
Implement input validation mechanisms to sanitize and verify incoming JSON data before deserialization.

Long-Term Security Practices

Regularly monitor security advisories from LiteDB and promptly apply patches to address identified vulnerabilities.
Restrict network access and user privileges to minimize the impact of potential attacks.

Patching and Updates

Stay informed about upcoming LiteDB releases to leverage improved security measures and ensure the safe handling of deserialized data.