CVE-2023-4320 : What You Need to Know

This CVE record pertains to an arithmetic overflow vulnerability found in Satellite that allows attackers to create personal access tokens with indefinite validity, potentially compromising system integrity. The vulnerability was published on December 18, 2023, by Red Hat.

Understanding CVE-2023-4320

This section will delve into the details of CVE-2023-4320, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-4320?

CVE-2023-4320 is an arithmetic overflow flaw discovered in Satellite during the creation of new personal access tokens. This vulnerability enables malicious actors to generate personal access tokens that remain valid indefinitely, leading to potential integrity issues within the system.

The Impact of CVE-2023-4320

The impact of CVE-2023-4320 is rated as high severity according to the Red Hat severity rating. The vulnerability has a CVSS base score of 7.6, with a high impact on integrity and low impacts on confidentiality and availability. Attackers can exploit this vulnerability to create malicious access tokens, posing a risk to system security.

Technical Details of CVE-2023-4320

This section provides an overview of the technical aspects of CVE-2023-4320, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from an arithmetic overflow issue in Satellite's process of creating personal access tokens. This flaw allows threat actors to abuse the arithmetic overflow to craft access tokens with persistent validity, potentially impacting system integrity.

Affected Systems and Versions

The affected product is Red Hat Satellite 6, specifically version 6.13. Users of this version are vulnerable to the exploit, while version 6.13 remains unaffected by the vulnerability.

Exploitation Mechanism

Attackers can leverage the arithmetic overflow flaw in Satellite to create and utilize personal access tokens that have an indefinite lifespan. By exploiting this limitation, threat actors may compromise system integrity and security.

Mitigation and Prevention

In response to CVE-2023-4320, it is critical for users and administrators to take immediate steps to mitigate the risk posed by this vulnerability and implement long-term security practices.

Immediate Steps to Take

Users are advised to apply relevant patches and updates provided by Red Hat to address the vulnerability promptly. Additionally, disabling or limiting the use of personal access tokens in Satellite can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust session management practices, monitoring access token creation and usage, and conducting regular security assessments can enhance the overall security posture of systems like Red Hat Satellite 6 and mitigate similar vulnerabilities in the future.

Patching and Updates

Red Hat has likely released patches and updates to rectify CVE-2023-4320. Users are encouraged to stay informed about security advisories from Red Hat and promptly apply any available patches to secure their systems against potential exploitation of this vulnerability.