CVE-2023-37474 : Exploit Details and Defense Strategies

A path traversal vulnerability in Copyparty versions prior to 1.8.2 has been identified, allowing attackers unauthorized access to files and directories outside the intended directory structure.

Understanding CVE-2023-37474

This vulnerability, tracked as CWE-22, indicates an improper limitation of a pathname to a restricted directory, leading to path traversal exploitation.

What is CVE-2023-37474?

Copyparty, a portable file server, is susceptible to a path traversal attack where an attacker can navigate beyond the designated directory structure, potentially compromising sensitive data.

The Impact of CVE-2023-37474

The path traversal vulnerability in Copyparty versions prior to 1.8.2 poses a high risk to confidentiality, allowing unauthorized users to view, delete, or modify critical files.

Technical Details of CVE-2023-37474

The CVSSv3.0 base score for this vulnerability is 7.5 (High severity), with low attack complexity and network accessibility. Confidentiality is highly impacted, while integrity and availability remain unaffected.

Vulnerability Description

A path traversal flaw in the

.cpr

subfolder of Copyparty enables attackers to traverse directories outside the web root, potentially leading to data breaches.

Affected Systems and Versions

Vendor: 9001
Product: Copyparty
Affected Versions: < 1.8.2

Exploitation Mechanism

The vulnerability can be exploited by crafting specific file paths in requests to the server, allowing unauthorized retrieval of sensitive files.

Mitigation and Prevention

To secure systems from CVE-2023-37474, immediate action and long-term security measures are crucial.

Immediate Steps to Take

Update Copyparty to version 1.8.2 or later to mitigate the vulnerability.
Implement proper access controls and input validation to prevent directory traversal attacks.

Long-Term Security Practices

Regularly monitor and apply security patches and updates for all software components.
Conduct routine security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Ensure that all software, including dependencies, are kept up to date to prevent known vulnerabilities and maintain a secure environment.