CVE-2023-46253 : Security Advisory and Response

This article provides details about CVE-2023-46253, a remote code execution vulnerability in Squidex that allows attackers to gain unauthorized access and execute arbitrary commands.

Understanding CVE-2023-46253

CVE-2023-46253 is a critical vulnerability in Squidex, an open-source headless CMS and content management hub. This vulnerability allows authenticated attackers to exploit an arbitrary file write vulnerability in the backup restore feature, leading to remote code execution.

What is CVE-2023-46253?

Squidex affected versions have an arbitrary file write vulnerability in the backup restore feature. An attacker with specific permissions can manipulate the backup files and execute malicious commands on the server, potentially compromising the system.

The Impact of CVE-2023-46253

The impact of this vulnerability is severe, as it allows attackers to achieve remote code execution, gaining full control over the affected system. It could lead to further exploitation of sensitive data and disruption of services.

Technical Details of CVE-2023-46253

The vulnerability in Squidex arises from the improper handling of filenames during the backup restore process, enabling attackers to inject and execute malicious commands.

Vulnerability Description

The flaw allows attackers with specific permissions to manipulate asset backup files, leading to the execution of arbitrary operating system commands on the server, resulting in remote code execution and potential system compromise.

Affected Systems and Versions

The vulnerability impacts Squidex versions below 7.9.0, leaving them susceptible to this critical security issue.

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating asset backup files and inserting malicious commands, leveraging the backup restore feature to execute arbitrary code on the server, ultimately gaining remote control.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risk posed by CVE-2023-46253 and prevent unauthorized access and remote code execution.

Immediate Steps to Take

Upgrade Squidex to version 7.9.0 or newer to eliminate the vulnerability and enhance system security.
Restrict permissions for accessing and manipulating backup files to trusted users only.

Long-Term Security Practices

Regularly audit and review access controls and permissions within the Squidex platform to prevent unauthorized actions.
Implement robust security protocols to monitor and detect any unusual activities or unauthorized access attempts.

Patching and Updates

Stay vigilant for security updates and patches released by Squidex to address known vulnerabilities and ensure the ongoing security of your systems.