CVE-2022-36423 : Security Advisory and Response

OpenHarmony-v3.1.2 and prior versions have an incorrect configuration of the cJSON library, leading to a Stack overflow vulnerability during recursive parsing. Attackers in the LAN can exploit this to conduct a DoS attack on all network devices.

Understanding CVE-2022-36423

This section delves into the details of the CVE-2022-36423 vulnerability.

What is CVE-2022-36423?

CVE-2022-36423 concerns an incorrect configuration of the cJSON library in OpenHarmony software, allowing LAN attackers to execute a DoS attack on network devices.

The Impact of CVE-2022-36423

The vulnerability poses a significant threat, with a CVSS base score of 7.4 (High), affecting OpenHarmony versions 3.1.2 and earlier.

Technical Details of CVE-2022-36423

This section provides technical insights into the CVE-2022-36423 vulnerability.

Vulnerability Description

The vulnerability arises from an incorrect configuration of the cJSON library, resulting in a Stack overflow vulnerability during recursive parsing.

Affected Systems and Versions

OpenHarmony versions 3.1.2, 3.0.5, and 1.1.5 are affected by this vulnerability due to the flawed cJSON library configuration.

Exploitation Mechanism

LAN attackers can exploit this vulnerability to trigger a DoS attack on all network devices, taking advantage of the Stack overflow vulnerability.

Mitigation and Prevention

In this section, we outline key steps to mitigate and prevent CVE-2022-36423.

Immediate Steps to Take

Users should apply updates or patches provided by OpenHarmony to address the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implementing network segmentation, access controls, and regular security audits can enhance overall network security and mitigate such vulnerabilities.

Patching and Updates

Regularly monitor for security updates from OpenHarmony and promptly apply patches to ensure systems are protected against known vulnerabilities.