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The National Vulnerability Database (NVD) recently unveiled a significant vulnerability found in Microsoft Power BI called CVE-2022-23292. This Windows application enables users to create interactive reports and dashboards, and it is used extensively by companies to visualize and analyze critical data. This post will cover the Microsoft Power BI spoofing vulnerability in depth, providing code snippets, links to original references, and various exploit details to help you understand and mitigate the risk associated with this vulnerability. The language used will be simple and clear for everyone to easily comprehend.

Overview of CVE-2022-23292 Microsoft Power BI Spoofing Vulnerability
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- NVD: CVE-2022-23292
- Microsoft Security Guidance: Advisory-CVE-2022-23292

The CVE-2022-23292 vulnerability involves a spoofing issue caused by Microsoft Power BI inadequately validating resource URIs that users submit. Attackers could exploit this vulnerability, potentially gaining unauthorized access to sensitive information and misleading users into engaging with malicious resources. Consequently, organizations using Power BI must quickly address this vulnerability to prevent unauthorized access and protect sensitive data.

Code Snippets

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Illustrating the vulnerability, we can look at a simple code snippet that demonstrates how attackers might craft malicious URLs.

Let's imagine we have the following basic Power BI report hosted at https://legitimate-website.com/report:

<!DOCTYPE html>
<html>
<head>
    <title>Power BI Report</title>
    <script src="https://cdn.powerbi.com/powerbi.js"></script>;
</head>
<body>
    <div id="powerbi-container"></div>
    <script>
        const embedConfiguration = {
            type: 'report',
            tokenType: 1,
            accessToken: 'your-access-token',
            embedUrl: 'https://legitimate-website.com/report'
        };
        const powerbiContainer = document.getElementById('powerbi-container');
        const powerbi = new powerbi.api.PowerBI('powerbi-container');
        const embeddedReport = powerbi.embed(powerbiContainer, embedConfiguration);
    </script>
</body>
</html>

The attacker might clone this report and inject a resource hosted at https://evil-website.com/evil-resource as follows:

<!DOCTYPE html>
<html>
<head>
    <title>Power BI Report</title>
    <script src="https://cdn.powerbi.com/powerbi.js"></script>;
</head>
<body>
    <div id="powerbi-container"></div>
    <script>
        const embedConfiguration = {
            type: 'report',
            tokenType: 1,
            accessToken: 'your-access-token',
            embedUrl: 'https://laughteriswild.com/evil-resource';
        };
        const powerbiContainer = document.getElementById('powerbi-container');
        const powerbi = new powerbi.api.PowerBI('powerbi-container');
        const embeddedReport = powerbi.embed(powerbiContainer, embedConfiguration);
    </script>
</body>
</html>

The vulnerability can be exploited by attackers because Power BI does not validate the embedded URL properly, leading to the injection of malicious resources.

Exploit Details

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Craft a malicious URL that simulates the look and feel of the legitimate Power BI resource;

4. Lure the unsuspecting victim into clicking or navigating to the malicious URL to initiate the exploit.

Mitigation

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The best way to mitigate this exploit is to implement a stringent validation mechanism that prevents unauthorized URIs from being embedded into Power BI reports. This measure will help deter attackers from utilizing the CVE-2022-23292 vulnerability and protect sensitive company data in the process.

Conclusion

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The CVE-2022-23292 vulnerability presents a significant risk to Microsoft Power BI users, as it may allow unauthorized access to sensitive information. We hope that this post has provided valuable insights into the vulnerability, its exploits, and necessary mitigation measures. By understanding the issue and diligently implementing appropriate protections, organizations can ensure that their Power BI applications remain secure against potential threats.

Timeline

Published on: 04/15/2022 19:15:00 UTC
Last modified on: 04/21/2022 20:06:00 UTC