CVE-2023-0118 : Security Advisory and Response

This CVE, assigned by Red Hat, was published on September 20, 2023. It involves an arbitrary code execution flaw found in Foreman that allows an admin user to bypass safe mode in templates and execute arbitrary code on the underlying operating system.

Understanding CVE-2023-0118

This section delves into the details of the security vulnerability identified as CVE-2023-0118.

What is CVE-2023-0118?

CVE-2023-0118 is an arbitrary code execution vulnerability discovered in Foreman. It enables an admin user to circumvent safe mode in templates, potentially leading to the execution of unauthorized code on the underlying operating system.

The Impact of CVE-2023-0118

The exploitation of this vulnerability could result in severe consequences due to the execution of arbitrary code by an admin user, leading to unauthorized actions and security breaches within the system.

Technical Details of CVE-2023-0118

In this section, we will explore the specifics of CVE-2023-0118, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows an admin user to execute arbitrary code by bypassing safe mode in templates, posing a significant security risk to the system's integrity.

Affected Systems and Versions

The vulnerability impacts Foreman, with particular relevance to Red Hat Satellite 6.13 for RHEL 8. Notably, the rubygem-safemode package in Red Hat Satellite 6.13 is affected by this flaw.

Exploitation Mechanism

The exploit leverages the ability of an admin user to bypass safe mode restrictions in templates, enabling the execution of unauthorized code on the underlying operating system.

Mitigation and Prevention

This section focuses on the steps that can be taken to mitigate the risks associated with CVE-2023-0118 and prevent potential exploits.

Immediate Steps to Take

It is crucial to apply relevant security patches and updates provided by the vendor to address the vulnerability promptly. Additionally, restricting admin privileges and monitoring template usage can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing strong access controls, regular security assessments, and employee training on secure coding practices can enhance the overall security posture of the system and prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security advisories and updates from the vendor, ensuring timely application of patches to eliminate the vulnerability and enhance the security of the affected systems.