CVE-2021-43464 : Exploit Details and Defense Strategies

A Remote Code Execution (RCE) vulnerability exists in Subrion CMS 4.2.1 through modified code in a background field, allowing execution of data via eval().

Understanding CVE-2021-43464

A critical vulnerability that can lead to code execution in Subrion CMS 4.2.1.

What is CVE-2021-43464?

The CVE-2021-43464 is an RCE vulnerability in Subrion CMS 4.2.1, enabling attackers to execute code through manipulated data.

The Impact of CVE-2021-43464

Exploitation of this vulnerability can result in unauthorized remote code execution and potential compromise of the affected system.

Technical Details of CVE-2021-43464

A detailed overview of the technical aspects of this vulnerability.

Vulnerability Description

The vulnerability allows threat actors to execute arbitrary code by manipulating data in the background field via eval() in Subrion CMS 4.2.1.

Affected Systems and Versions

Affected System: Subrion CMS 4.2.1
Affected Versions: all versions

Exploitation Mechanism

Attackers exploit this vulnerability by injecting malicious code into the background field of Subrion CMS 4.2.1, triggering its execution through eval().

Mitigation and Prevention

Measures to mitigate and prevent the exploitation of CVE-2021-43464.

Immediate Steps to Take

Update Subrion CMS to the latest version to patch the vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent code injection attacks.
Monitor for any unauthorized access or unusual activities on the network.

Long-Term Security Practices

Regularly audit and review code for security vulnerabilities.
Educate developers and users on secure coding practices and potential threats like RCE vulnerabilities.

Patching and Updates

Apply security patches and updates promptly to ensure the system is protected against known vulnerabilities.