CVE-2022-41922 : Vulnerability Insights and Analysis

A critical vulnerability has been discovered in yiisoft/yii versions prior to 1.1.27, leaving them susceptible to Remote Code Execution (RCE) if the application invokes

unserialize()

with arbitrary user input. This CVE was published on November 23, 2022, by GitHub_M.

Understanding CVE-2022-41922

This section delves into the details of the CVE-2022-41922 vulnerability.

What is CVE-2022-41922?

The CVE-2022-41922 vulnerability affects yiisoft/yii versions before 1.1.27, enabling attackers to execute remote code by exploiting the

unserialize()

function on untrusted input.

The Impact of CVE-2022-41922

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 8.1. If successfully exploited, attackers can compromise the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2022-41922

In this section, we explore the technical aspects of CVE-2022-41922.

Vulnerability Description

The vulnerability arises from improper handling of user input by the

unserialize()

function in yiisoft/yii versions prior to 1.1.27, allowing malicious actors to execute arbitrary remote code.

Affected Systems and Versions

This vulnerability impacts yiisoft/yii versions lower than 1.1.27. Systems that utilize this framework without the latest patch are at risk of exploitation.

Exploitation Mechanism

By invoking

unserialize()

on untrusted user input, threat actors can craft malicious payloads to execute arbitrary code on vulnerable systems.

Mitigation and Prevention

Discover how to secure your systems against CVE-2022-41922 in this section.

Immediate Steps to Take

Update to version 1.1.27 or later to mitigate the vulnerability. Avoid invoking

unserialize()

on unsanitized input to prevent potential RCE attacks.

Long-Term Security Practices

Enforce input validation and output encoding practices to bolster application security and reduce the risk of deserialization vulnerabilities.

Patching and Updates

Stay vigilant for security advisories and promptly apply patches released by yiisoft to safeguard your applications.