CVE-2023-27237: LavaLite CMS vulnerable to host header injection attack

Background

LavaLite CMS is a content management system (CMS) with version 9.0.0 being affected by a host header injection attack. This CMS is commonly used for building websites and managing their content. It provides various features and functionalities for creating and organizing web pages, including user authentication, database management, and template customization.

Vulnerability Detail

The vulnerability in LavaLite CMS version 9.0.0 allows for a host header injection attack. This type of attack occurs when an attacker manipulates the host header of an HTTP request to inject malicious content. By exploiting this vulnerability, an attacker can potentially perform various malicious activities, such as redirecting users to malicious websites, intercepting sensitive information, or conducting phishing attacks. The severity of this vulnerability is considered moderate with a CVSS score of 6.1.

Workaround

As a temporary workaround, users can implement a validation and sanitization mechanism for the host header in their own code. This can be done by checking the host header value against a whitelist of allowed domains or by using a regular expression to validate the format of the host header. Here is an example of how to validate the host header using PHP:

$allowedDomains = ['example.com', 'example.org'];
$hostHeader = $_SERVER['HTTP_HOST'];

if (!in_array($hostHeader, $allowedDomains)) {
    // Handle invalid host header
    exit;
}

Conclusion

LavaLite CMS version 9.0.0 is vulnerable to a host header injection attack. Users of this CMS should update to a patched version to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.

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