CVE-2023-1370 : What You Need to Know

This CVE-2023-1370 article provides valuable information about a vulnerability found in the Json-smart library, which can lead to a denial of service attack when parsing malformed JSON data.

Understanding CVE-2023-1370

This section will delve into the details of CVE-2023-1370, explaining the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-1370?

CVE-2023-1370 pertains to a vulnerability in the Json-smart library, a performance-focused JSON processor library. The issue arises when the code encounters a '[' or '{' character in the JSON input, causing it to parse arrays or objects recursively. The problem lies in the lack of a limit on the nesting of these arrays or objects. As a result, excessively nested arrays or objects can lead to a stack exhaustion (stack overflow) and potentially crash the software.

The Impact of CVE-2023-1370

The impact of CVE-2023-1370 is rated as HIGH, with a CVSS v3.1 base severity score of 7.5. This vulnerability has a low attack complexity and can be exploited over a network. The availability impact is significant, potentially leading to a denial of service when the software crashes due to stack exhaustion. While the confidentiality and integrity impacts are assessed as none, the privilege required for exploitation is also none.

Technical Details of CVE-2023-1370

In this section, we will explore the technical specifics of CVE-2023-1370, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Json-smart library relates to uncontrolled recursion (CWE-674), where the lack of a limit on nested arrays or objects can exhaust the stack and lead to a denial of service condition.

Affected Systems and Versions

The impacted system is the Json-smart library, specifically version less than 2.4.9 in the Maven version type.

Exploitation Mechanism

The vulnerability can be exploited by crafting malicious JSON input with excessively nested arrays or objects, causing the software to crash due to stack exhaustion.

Mitigation and Prevention

This segment will outline the necessary steps to mitigate the risks posed by CVE-2023-1370, providing guidance on immediate actions and long-term security practices.

Immediate Steps to Take

Users should update their Json-smart library to a version equal to or greater than 2.4.9 to mitigate the vulnerability. Additionally, implementing input validation mechanisms can help prevent the exploitation of this issue.

Long-Term Security Practices

Adopting secure coding practices, conducting regular security audits, and staying informed about software vulnerabilities can enhance long-term security resilience against similar threats.

Patching and Updates

Regularly monitor for security advisories from Json-smart and other libraries used in software development. Promptly apply patches and updates to ensure that the software remains protected against known vulnerabilities.