CVE-2022-40489: ThinkCMF Cross Site Request Forgery (CSRF) vulnerability
Summary
CVE-2022-40489: ThinkCMF Cross Site Request Forgery (CSRF) vulnerability. Affects thinkcmf/thinkcmf versions < 6.0.8. Fixed in 6.0.8. How to fix ↓
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Background
ThinkCMF is an open-source content management framework written in PHP. It provides a range of features for building and managing websites, including user authentication, content creation, and administrative functions. ThinkCMF version 6.0.7 is affected by a Cross Site Request Forgery (CSRF) vulnerability that allows a Super Administrator user to be injected into administrative users.
Vulnerability Detail
The Cross Site Request Forgery (CSRF) vulnerability in ThinkCMF version 6.0.7 enables an attacker to perform unauthorized actions on behalf of an authenticated user. By tricking a Super Administrator user into visiting a malicious website or clicking on a specially crafted link, an attacker can execute arbitrary actions in the context of the targeted user. This can lead to unauthorized access, data manipulation, or privilege escalation within the ThinkCMF administrative interface.
How To Fix
Minimum fixed version
6.0.8
This is the first release that contains the fix.
composer require thinkcmf/thinkcmf:6.0.8Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, administrators can implement additional CSRF protection measures, such as using anti-CSRF tokens in forms and validating the Referer header. This can help mitigate the risk of CSRF attacks while waiting for the upgrade to be performed. Here is an example of how to implement anti-CSRF tokens in a ThinkCMF form:
<?php
// Generate and store the anti-CSRF token
$token = bin2hex(random_bytes(32));
$_SESSION['csrf_token'] = $token;
// Include the token in the form
<form action="/process" method="post">
<input type="hidden" name="csrf_token" value="<?php echo $token; ?>">
<!-- Rest of the form fields -->
<input type="submit" value="Submit">
</form>
Make sure to validate the CSRF token on the server-side when processing the form submission.
Conclusion
The Cross Site Request Forgery (CSRF) vulnerability in ThinkCMF version 6.0.7 poses a significant security risk, allowing unauthorized actions to be performed on behalf of authenticated users. It is crucial to upgrade ThinkCMF to version 6.0.8 or later to mitigate this vulnerability. In the meantime, administrators can implement additional CSRF protection measures as a temporary workaround. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
ThinkCMF is an open-source content management framework written in PHP. It provides a range of features for building and managing websites, including user authentication, content creation, and administrative functions.
A Cross Site Request Forgery (CSRF) vulnerability allows an attacker to perform unauthorized actions on behalf of an authenticated user. By tricking a user into visiting a malicious website or clicking on a specially crafted link, an attacker can execute arbitrary actions in the context of the targeted user.
The CSRF vulnerability in ThinkCMF allows a Super Administrator user to be injected into administrative users. This can lead to unauthorized access, data manipulation, or privilege escalation within the ThinkCMF administrative interface.
To fix this vulnerability, it is recommended to upgrade ThinkCMF to version 6.0.8 or later. The latest version includes patches and security enhancements that address the CSRF vulnerability.
As a temporary workaround, administrators can implement additional CSRF protection measures, such as using anti-CSRF tokens in forms and validating the Referer header.
References
Related vulnerabilities
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