CVE-2023-4094 : Exploit Details and Defense Strategies

This CVE-2023-4094 was published on September 19, 2023, by INCIBE. It involves a weak authentication vulnerability in Fujitsu Arconte Áurea that could potentially lead to denial of service attacks.

Understanding CVE-2023-4094

This CVE highlights a security flaw in the authentication system of ARCONTE Aurea, specifically in version 1.5.0.0. Attackers could exploit this vulnerability to disrupt legitimate access and bypass login attempt limits.

What is CVE-2023-4094?

The vulnerability in ARCONTE Aurea's authentication system allows attackers to make incorrect access requests, potentially blocking legitimate accounts and causing denial of service. Additionally, there is a resource that enables circumvention of login attempt limits.

The Impact of CVE-2023-4094

With a CVSS base score of 6.5, this medium-severity vulnerability poses a risk to the availability of affected systems. It has a low impact on confidentiality and none on integrity, requiring no user interaction for exploitation.

Technical Details of CVE-2023-4094

This vulnerability is categorized under CWE-1390: Weak Authentication. The attack complexity is low, with a network-based attack vector and low availability impact. The vulnerability does not require any privileges for exploitation.

Vulnerability Description

The weakness in ARCONTE Aurea's authentication system could allow unauthorized users to disrupt service and surpass login attempt limits, potentially leading to denial of service incidents.

Affected Systems and Versions

The vulnerable version is 1.5.0.0 of ARCONTE Aurea by Fujitsu. Any systems running this specific version are at risk of exploitation.

Exploitation Mechanism

Attackers could exploit this vulnerability by sending incorrect access requests to the authentication system, leading to the blocking of legitimate accounts and disrupting service availability.

Mitigation and Prevention

To address CVE-2023-4094 and prevent potential exploits, immediate actions and long-term security measures are necessary.

Immediate Steps to Take

Organizations using ARCONTE Aurea version 1.5.0.0 should update to the patched version 1.5.0.0 released on April 4, 2022, or newer versions like 1.6.2.3, which include the necessary fixes.

Long-Term Security Practices

Regularly updating software, implementing strong authentication mechanisms, and monitoring access requests can enhance the overall security posture and reduce the risk of similar vulnerabilities.

Patching and Updates

Installing patches and updates provided by Fujitsu for ARCONTE Aurea is crucial to address the weak authentication vulnerability and maintain a secure environment for data and system integrity.