CVE-2023-43733 in Os Commerce
Summary
by MITRE • 10/25/2023
Os Commerce is currently susceptible to a Cross-Site Scripting (XSS) vulnerability. This vulnerability allows attackers to inject JS through the "company_address" parameter, potentially leading to unauthorized execution of scripts within a user's web browser.
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Analysis
by VulDB Data Team • 10/25/2023
The vulnerability identified as CVE-2023-43733 represents a critical cross-site scripting flaw within the Os Commerce platform that exposes users to significant security risks. This vulnerability specifically affects the company_address parameter handling within the application's input processing mechanisms. The flaw stems from inadequate sanitization of user-supplied data, allowing malicious actors to inject malicious javascript code that executes within the context of legitimate user sessions. Such vulnerabilities fall under the CWE-79 category, which specifically addresses cross-site scripting weaknesses in web applications, making them particularly dangerous as they exploit the trust relationship between users and web applications. The vulnerability demonstrates a classic input validation failure where the application fails to properly escape or filter special characters that could be interpreted as executable code by web browsers.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious payload containing javascript code and submits it through the company_address parameter. When the vulnerable application processes this input without proper sanitization, it stores or displays the malicious content without adequate encoding or escaping mechanisms. This allows the injected javascript to execute within the victim's browser context, potentially leading to session hijacking, credential theft, or further exploitation through techniques such as DOM-based XSS or reflected XSS attacks. The attack vector is particularly concerning because it leverages a parameter that might be used in legitimate business contexts, making it harder to detect and filter. According to ATT&CK framework, this vulnerability maps to T1531 (Account Access Token Hijacking) and T1059.007 (Command and Scripting Interpreter: JavaScript), as it enables unauthorized script execution and token manipulation through browser-based attacks.
The operational impact of CVE-2023-43733 extends beyond simple script injection, potentially allowing attackers to perform session manipulation, steal sensitive user information, or redirect victims to malicious websites. In a typical e-commerce environment, this vulnerability could enable attackers to access customer data, manipulate transactions, or even take control of administrative accounts if the application lacks proper access controls. The vulnerability affects the integrity and confidentiality of user data, potentially leading to financial losses, reputational damage, and compliance violations under data protection regulations such as GDPR or PCI DSS. Organizations using Os Commerce systems face heightened risk of data breaches and unauthorized access, particularly in environments where administrative privileges are not properly isolated from customer-facing interfaces. The vulnerability's exploitation requires minimal technical skill and can be automated, making it particularly dangerous for widespread deployment in attack frameworks.
Mitigation strategies for CVE-2023-43733 should prioritize immediate implementation of input validation and output encoding mechanisms. Organizations must ensure that all user-supplied data, particularly parameters used in display contexts, undergo proper sanitization before processing. The recommended approach involves implementing strict input validation that rejects or escapes special characters commonly used in XSS attacks, including angle brackets, quotes, and javascript keywords. Additionally, organizations should deploy Content Security Policy headers to limit script execution contexts and implement proper output encoding for all dynamic content. The solution should align with OWASP Top Ten security practices and incorporate proper parameter validation techniques that prevent the injection of executable code. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities, while maintaining up-to-date security patches and monitoring systems for anomalous behavior that might indicate exploitation attempts. The implementation of a comprehensive web application firewall can provide additional protection layers, though it should not be considered a substitute for proper code-level fixes.