CVE-2023-4093 : Security Advisory and Response

This CVE record was assigned by INCIBE and published on September 19, 2023. It revolves around a reflected and persistent XSS vulnerability found in the Fujitsu Arconte Áurea software.

Understanding CVE-2023-4093

This vulnerability pertains to a security issue in the 1.5.0.0 version of Fujitsu Arconte Áurea, which could allow malicious actors to inject JavaScript code, compromise browsers, redirect users to malicious sites, or access sensitive information.

What is CVE-2023-4093?

CVE-2023-4093 is a reflected and persistent XSS vulnerability in Fujitsu Arconte Áurea, specifically in version 1.5.0.0. Exploiting this flaw enables attackers to execute malicious scripts, manipulate user browsers, and potentially gain control over affected systems.

The Impact of CVE-2023-4093

This vulnerability carries a CVSS v3.1 base score of 5.5, categorizing it as a medium severity issue. An attacker leveraging this vulnerability could disrupt the availability of the system, compromise confidentiality and integrity, all with low privileges required but user interaction mandated.

Technical Details of CVE-2023-4093

The Vulnerability Description The flaw involves improper neutralization of input during web page generation, commonly known as 'Cross-site Scripting' (CWE-79). This allows attackers to inject and execute malicious scripts within the context of an affected user's session.

Affected Systems and Versions The vulnerability affects Arconte Áurea version 1.5.0.0. It is important to note that versions prior to this are not impacted.

Exploitation Mechanism Attackers can exploit this vulnerability over a network, with a low attack complexity. They can use this to compromise the victim's browser by injecting malicious code and subsequently take control or redirect them to harmful websites.

Mitigation and Prevention

Taking immediate steps to address CVE-2023-4093 is crucial to ensure the security of systems using Fujitsu Arconte Áurea.

Immediate Steps to Take

Users are advised to update to the patched version, 1.5.0.0, released on 4/4/2022, to remedy the vulnerability. It is also recommended to apply the latest updates, including version 1.6.2.3, which includes additional fixes.

Long-Term Security Practices

To enhance overall security posture, organizations should implement secure coding practices, conduct regular security assessments, and educate users on identifying and avoiding potential threats like XSS attacks.

Patching and Updates

Regularly checking for and applying software updates and patches issued by vendors such as Fujitsu helps in safeguarding systems against known vulnerabilities and enhancing the overall security of the software.