CVE-2023-47130 : What You Need to Know

A high-severity CVE has been identified in the yiisoft/yii library, involving unsafe deserialization of user data leading to Remote Code Execution (RCE). This article provides an overview of CVE-2023-47130, its impact, technical details, and mitigation strategies.

Understanding CVE-2023-47130

This section delves into the key aspects of the CVE, shedding light on the vulnerability's nature and implications.

What is CVE-2023-47130?

CVE-2023-47130 pertains to an unsafe deserialization vulnerability in yiisoft/yii versions prior to 1.1.29. Attackers can exploit this flaw to execute arbitrary code remotely by manipulating the

unserialize()

function on user-controlled input.

The Impact of CVE-2023-47130

The impact of this vulnerability is severe, as attackers can compromise the host system through Remote Code Execution. The confidentiality, integrity, and availability of the system are at high risk.

Technical Details of CVE-2023-47130

This section provides an in-depth insight into the technical facets of the CVE, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper handling of user data during deserialization in yiisoft/yii versions prior to 1.1.29, allowing attackers to execute arbitrary code remotely.

Affected Systems and Versions

The affected system includes yiisoft/yii versions lower than 1.1.29. Users of these versions are vulnerable to the exploitation of the unsafe deserialization bug.

Exploitation Mechanism

Attackers exploit the CVE by leveraging the

unserialize()

function on user-defined data, enabling them to achieve Remote Code Execution through crafted payloads.

Mitigation and Prevention

This section outlines the steps to mitigate the risks posed by CVE-2023-47130 and prevent potential exploitation.

Immediate Steps to Take

Users are strongly advised to upgrade to version 1.1.29 or later to patch the vulnerability. Implement strict input validation controls and avoid deserializing untrusted data.

Long-Term Security Practices

Maintain regular security updates, security assessments, and awareness programs to enhance the overall security posture. Follow secure coding practices and conduct code reviews to identify vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates from yiisoft/yii to address emerging threats promptly and ensure the ongoing protection of systems against potential exploits.