CVE-2023-50069 : Exploit Details and Defense Strategies

WireMock with GUI versions 3.2.0.0 through 3.0.4.0 are vulnerable to stored cross-site scripting (SXSS) through the recording feature. An attacker can host a malicious payload and perform a test mapping pointing to the attacker's file, and the result will render on the Matched page in the Body area, resulting in the execution of the payload. This occurs because the response body is not validated or sanitized.

Understanding CVE-2023-50069

This CVE relates to a vulnerability in WireMock software that allows for stored cross-site scripting through the recording feature, potentially enabling attackers to execute malicious payloads.

What is CVE-2023-50069?

CVE-2023-50069 highlights a security flaw in WireMock with GUI versions 3.2.0.0 through 3.0.4.0 that could be exploited by attackers to execute malicious scripts through the response body.

The Impact of CVE-2023-50069

The impact of this CVE is significant as it exposes systems running the affected versions of WireMock to the risk of stored cross-site scripting attacks, potentially leading to unauthorized execution of malicious code.

Technical Details of CVE-2023-50069

This section covers the technical aspects of the CVE, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in WireMock allows for stored cross-site scripting (SXSS) via the recording feature, where an attacker can host a malicious payload and execute it through the response body without proper validation.

Affected Systems and Versions

WireMock versions 3.2.0.0 through 3.0.4.0 are affected by this vulnerability, putting systems that utilize these versions at risk of SXSS attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by hosting a malicious payload and directing test mappings to the attacker's file, rendering the payload on the Matched page, and executing it due to the lack of validation.

Mitigation and Prevention

To address CVE-2023-50069 and mitigate the risk it poses, it is crucial to take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update WireMock to a non-vulnerable version or apply patches provided by the vendor.
Avoid hosting untrusted or malicious payloads on the server.

Long-Term Security Practices

Regularly monitor for security updates and apply patches promptly.
Implement input validation and sanitize user-generated content to prevent stored XSS attacks.

Patching and Updates

Stay informed about security advisories from the vendor and promptly apply patches to ensure the security of your systems.