CVE-2023-26111 Explained : Impact and Mitigation

This CVE record discusses a vulnerability found in the package @nubosoftware/node-static and the package node-static. The vulnerability is related to Directory Traversal due to improper file path sanitization in the startsWith() method within the servePath function.

Understanding CVE-2023-26111

This section delves into the details of CVE-2023-26111, shedding light on what it is and its potential impact.

What is CVE-2023-26111?

CVE-2023-26111 is a vulnerability affecting all versions of the package @nubosoftware/node-static and node-static. The issue arises from improper file path sanitization in the startsWith() method within the servePath function, leading to Directory Traversal.

The Impact of CVE-2023-26111

The impact of CVE-2023-26111 is rated as HIGH, with a CVSS base score of 7.5. The confidentiality of the affected systems is at risk, while integrity and availability remain unaffected. This vulnerability can be exploited remotely with low complexity, requiring no privileges or user interaction.

Technical Details of CVE-2023-26111

In this section, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in CVE-2023-26111 stems from the improper file path sanitization in the startsWith() method within the servePath function. This flaw allows attackers to traverse directories on the system, potentially leading to unauthorized access to sensitive files.

Affected Systems and Versions

@nubosoftware/node-static:
Versions affected: All versions
node-static:
Versions affected: All versions

Exploitation Mechanism

Exploiting CVE-2023-26111 involves leveraging the lack of proper file path sanitization in the startsWith() method to carry out Directory Traversal attacks. Attackers can manipulate file paths to access files and directories beyond the intended scope, posing a threat to system security.

Mitigation and Prevention

Here, we discuss immediate steps to take, long-term security practices, and the importance of patching and updates in mitigating the risks associated with CVE-2023-26111.

Immediate Steps to Take

Update the affected packages to patched versions that address the Directory Traversal vulnerability.
Implement proper input sanitization and validation in the relevant code to prevent Directory Traversal attacks.

Long-Term Security Practices

Regularly monitor and update dependencies to ensure the use of the latest secure versions.
Conduct routine security assessments and code reviews to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories related to @nubosoftware/node-static and node-static. Apply patches promptly and follow best practices for secure coding and deployment to enhance the resilience of your systems against potential threats.