CVE-2022-3975 in NukeViet
Summary
by MITRE • 11/13/2022
A vulnerability, which was classified as problematic, has been found in NukeViet CMS. Affected by this issue is the function filterAttr of the file vendor/vinades/nukeviet/Core/Request.php of the component Data URL Handler. The manipulation of the argument attrSubSet leads to cross site scripting. The attack may be launched remotely. Upgrading to version 4.5 is able to address this issue. The name of the patch is 0b3197fad950bb3383e83039a8ee4c9509b3ce02. It is recommended to upgrade the affected component. VDB-213554 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 12/17/2022
The vulnerability identified as CVE-2022-3975 represents a cross-site scripting vulnerability within the NukeViet Content Management System that poses significant security risks to web applications utilizing this platform. This issue specifically affects the Data URL Handler component, which processes and validates URL parameters within the CMS framework. The vulnerability stems from improper input validation in the filterAttr function located within the vendor/vinades/nukeviet/Core/Request.php file, making it susceptible to malicious payload injection through crafted URL parameters.
The technical flaw manifests when the attrSubSet argument is manipulated, allowing attackers to inject malicious scripts that execute in the context of other users' browsers. This cross-site scripting vulnerability operates through the exploitation of the Data URL Handler component, which processes URL attributes without adequate sanitization. The vulnerability's remote exploitation capability means that attackers can launch attacks through web browsers without requiring local access to the system, making it particularly dangerous for publicly accessible web applications. The specific nature of the flaw allows for the injection of script code that can be executed in the victim's browser context, potentially leading to session hijacking, data theft, or further exploitation of the affected system.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to establish persistent access to affected systems through session manipulation or credential theft. The vulnerability's classification as problematic indicates that it can be exploited to compromise user sessions or access sensitive data within the CMS environment. The remote attack vector eliminates the need for physical access or network proximity, making it a critical concern for organizations running NukeViet CMS installations. This vulnerability directly violates security principles related to input validation and output encoding, as outlined in CWE-79 which addresses cross-site scripting flaws in web applications.
Organizations affected by this vulnerability should immediately implement the recommended upgrade to version 4.5, which includes the patch identified by the commit hash 0b3197fad950bb3383e83039a8ee4c9509b3ce02. This upgrade addresses the root cause of the vulnerability by implementing proper input validation and sanitization within the filterAttr function. The patch specifically targets the attrSubSet argument handling to prevent malicious script injection through the Data URL Handler component. Security administrators should also consider implementing additional protective measures such as web application firewalls and input validation rules to mitigate potential exploitation attempts. The vulnerability's remediation aligns with ATT&CK technique T1566 which involves the exploitation of web application vulnerabilities to gain initial access or escalate privileges within affected systems.
The broader implications of this vulnerability highlight the importance of proper input validation in web application development and the need for comprehensive security testing of third-party components. Organizations should conduct thorough security assessments of their web applications to identify similar vulnerabilities in other components or libraries that may be susceptible to cross-site scripting attacks. The vulnerability demonstrates how seemingly minor input handling flaws can lead to significant security breaches, emphasizing the critical nature of security patch management and the importance of maintaining up-to-date software components. Proper implementation of security controls including output encoding, input validation, and secure coding practices can prevent similar vulnerabilities from being exploited in the future.