CVE-2020-5497: XSS in MITREid Connect
Summary
CVE-2020-5497: XSS in MITREid Connect. Affects org.mitre:openid-connect-server versions < 1.3.3. No fix is published. How to fix ↓
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Background
MITREid Connect is an OpenID Connect reference implementation that provides authentication and authorization services. It is commonly used in web applications to enable secure user authentication. The vulnerability in question allows for cross-site scripting (XSS) attacks due to unsanitized input in the userInfoJson, specifically in the header.tag. This means that an attacker can inject and execute arbitrary JavaScript code on the affected page.
Vulnerability Detail
The XSS vulnerability in MITREid Connect can have serious consequences. By exploiting this vulnerability, an attacker can execute arbitrary JavaScript code in the context of a user's browser. This can lead to various malicious activities, such as stealing sensitive user information, manipulating the content of the page, or redirecting users to malicious websites. The vulnerability is rated as moderate severity with a CVSS score of 6.1.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
A temporary workaround for this vulnerability is to disable the affected functionality that allows the injection of unsanitized user input. This can be done by modifying the code to remove or sanitize the userInfoJson before including it in the page. Here is an example of how the code can be modified:
// Sanitize the userInfoJson
userInfoJson = sanitize(userInfoJson);
// Include the sanitized userInfoJson in the page
header.tag(userInfoJson);
Conclusion
The XSS vulnerability in MITREid Connect can have serious implications for the security of web applications. It is crucial to address this vulnerability by implementing proper input validation, output encoding, and considering the use of a Content Security Policy (CSP). For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
MITREid Connect is an OpenID Connect reference implementation that provides authentication and authorization services for web applications.
Cross-site scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users.
By exploiting XSS, an attacker can execute arbitrary JavaScript code in the victim's browser, potentially stealing sensitive information, manipulating page content, or redirecting users to malicious websites.
This vulnerability is rated as moderate severity with a CVSS score of 6.1.
To fix this vulnerability, you need to sanitize and validate user input before including it in the page. Implement input validation, output encoding, and consider using a Content Security Policy (CSP).
References
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