CVE-2023-39967 : Vulnerability Insights and Analysis

A critical vulnerability has been identified in WireMock, impacting all versions, that allows full read and controlled SSRF through a URL parameter. This vulnerability has a base severity rating of 'Critical' with a CVSS score of 10.

Understanding CVE-2023-39967

This section delves into the specifics of CVE-2023-39967.

What is CVE-2023-39967?

CVE-2023-39967 is a Server-Side Request Forgery (SSRF) vulnerability present in WireMock, a tool for mocking HTTP services. When specific request URLs are used in WireMock Studio configuration fields, the request might be forwarded to an arbitrary service reachable from WireMock's instance. This vulnerability presents three potential attack vectors.

The Impact of CVE-2023-39967

The impact of this vulnerability is significant as it allows an attacker to achieve full read and controlled SSRF through a URL parameter, potentially leading to unauthorized access to sensitive information, high confidentiality, integrity, and availability impact.

Technical Details of CVE-2023-39967

This section provides detailed technical insights into CVE-2023-39967.

Vulnerability Description

The vulnerability in WireMock allows for full read and controlled SSRF through specific URL parameters, enabling attackers to manipulate requests and access sensitive data.

Affected Systems and Versions

All versions of WireMock are affected by this vulnerability, posing a risk to users utilizing the tool for mocking HTTP services.

Exploitation Mechanism

The vulnerability can be exploited through request URLs in WireMock Studio configuration fields, allowing attackers to forward requests to unauthorized services.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-39967, immediate steps must be taken by affected users.

Immediate Steps to Take

As WireMock has discontinued the affected WireMock Studio product with no fix available, users are advised to seek alternative tools without the identified SSRF vulnerability.

Long-Term Security Practices

In the long term, organizations should prioritize security measures by regularly updating their software tools, conducting security assessments, and implementing secure coding practices.

Patching and Updates

Since a fix is not available for the affected WireMock Studio product, users should proactively look for secure alternatives and stay informed about security advisories from trusted sources.