CVE-2019-8920 in XAMPP
Summary
by MITRE
iart.php in XAMPP 1.7.0 has XSS, a related issue to CVE-2008-3569.
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Analysis
by VulDB Data Team • 10/24/2023
The vulnerability identified as CVE-2019-8920 affects the iart.php component within XAMPP version 1.7.0, representing a cross-site scripting flaw that allows remote attackers to inject malicious scripts into web applications. This issue is particularly significant as it demonstrates the persistence of legacy vulnerabilities within widely deployed web server environments, with the flaw being categorized as a related issue to CVE-2008-3569 which indicates a pattern of similar vulnerabilities in the same software ecosystem. The vulnerability resides in the iart.php file, which is part of the XAMPP suite that provides a complete open source cross-platform web server solution including Apache, MySQL, PHP, and Perl. This particular file likely handles art-related functionalities within the XAMPP control panel or web applications, making it a potential entry point for attackers seeking to exploit the XSS vulnerability.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the iart.php script. When user-supplied data is processed and subsequently rendered without proper encoding or filtering, malicious script code can be executed within the context of other users' browsers. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in software applications. The flaw allows attackers to inject malicious JavaScript code that can execute in the victim's browser when they access the affected page, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability is particularly dangerous in the context of XAMPP as it is commonly used in development environments where users may have elevated privileges or access to sensitive data, making the potential impact of exploitation significantly greater than in production environments.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform various malicious activities within the compromised environment. Attackers can leverage this vulnerability to steal session cookies, which would allow them to impersonate legitimate users and gain unauthorized access to the XAMPP control panel or any applications running within it. The attack surface is broadened due to the nature of XAMPP being used in development and testing environments where security measures might be less stringent than in production systems. This vulnerability particularly affects users who are logged into the XAMPP control panel or who have access to web applications hosted by the vulnerable XAMPP installation, as the malicious scripts could execute with the privileges of the logged-in user. The persistence of this vulnerability from 2008 to 2019 demonstrates the importance of regular security audits and patch management, as many organizations continue to use outdated software versions that contain known security flaws.
The mitigation strategies for this vulnerability primarily involve updating to newer versions of XAMPP where the XSS vulnerability has been addressed through proper input validation and output encoding. System administrators should immediately upgrade from the vulnerable 1.7.0 version to a patched release that implements proper security measures against cross-site scripting attacks. Additionally, implementing proper input sanitization techniques and output encoding in the affected iart.php script would prevent malicious code from being executed. The remediation process should include regular security assessments of web applications and server configurations, along with implementing web application firewalls to detect and block suspicious script injections. Organizations should also consider implementing the principle of least privilege and restricting access to the XAMPP control panel to authorized personnel only, as this reduces the potential attack surface. The vulnerability's classification under ATT&CK technique T1203 - Exploitation for Client Execution indicates that this attack vector is specifically designed to execute malicious code on the client side, making it a critical concern for organizations implementing security controls. Regular patch management programs and security awareness training for developers using XAMPP environments would significantly reduce the risk of exploitation and ensure that such legacy vulnerabilities do not persist in operational systems.