CVE-2007-3324 in Comersus Cart
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Comersus Cart 7.07 allow remote attackers to inject arbitrary web script or HTML via the redirectUrl parameter to (1) comersus_customerAuthenticateForm.asp or (2) comersus_message.asp, different vectors than CVE-2004-0681.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/15/2024
The vulnerability identified as CVE-2007-3324 represents a critical cross-site scripting flaw within Comersus Cart version 7.07, a widely used e-commerce platform that enables online retail operations. This vulnerability specifically targets two distinct entry points within the application's authentication and messaging functionality, creating multiple attack vectors for malicious actors seeking to exploit the system. The flaw resides in how the application processes user input through the redirectUrl parameter, which is utilized in both comersus_customerAuthenticateForm.asp and comersus_message.asp scripts, making it particularly dangerous due to its presence in core authentication and communication modules.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the Comersus Cart application. When attackers submit malicious payloads through the redirectUrl parameter, the application fails to properly sanitize or escape the input before incorporating it into the HTTP response. This allows attackers to inject arbitrary HTML and JavaScript code that executes within the context of other users' browsers when they access the affected pages. The vulnerability manifests as reflected XSS, where the malicious script is reflected back to users through the application's response, bypassing standard security controls that might otherwise prevent such attacks. The specific nature of the vulnerability places it under CWE-79, which categorizes cross-site scripting flaws as one of the most prevalent and dangerous web application security issues.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it can enable attackers to perform a wide range of malicious activities within the compromised environment. An attacker could potentially steal customer session cookies, redirect users to phishing sites, modify the content of the authenticated pages, or even execute commands on behalf of the victim within the application context. The fact that this vulnerability affects authentication and messaging functionality makes it particularly concerning, as it could compromise user credentials and enable unauthorized access to customer accounts. Additionally, the vulnerability's presence in multiple locations increases the attack surface and makes it more difficult for administrators to fully remediate the issue. This flaw directly aligns with ATT&CK technique T1531, which describes the use of malicious redirects to gain access to sensitive information, and T1566, which covers social engineering attacks through malicious content.
Organizations affected by this vulnerability should immediately implement comprehensive mitigations to protect their systems and customer data. The most effective immediate solution involves implementing strict input validation and output encoding mechanisms that sanitize all user-supplied data before it is processed or displayed. This includes implementing proper HTML escaping and context-appropriate encoding for all parameters that are reflected back to users. Additionally, organizations should consider implementing Content Security Policy (CSP) headers to limit the sources from which scripts can be executed, providing an additional layer of protection against XSS attacks. The implementation of proper parameter validation should be combined with regular security audits and code reviews to identify similar vulnerabilities in other application components. Organizations should also consider implementing web application firewalls that can detect and block malicious payloads attempting to exploit XSS vulnerabilities, particularly those targeting the specific parameter names and patterns associated with this vulnerability. Regular updates and patches to the Comersus Cart application should be prioritized, and organizations should ensure they are running supported versions that address these known security issues. The vulnerability's classification under CWE-79 underscores the importance of implementing defense-in-depth strategies that include both preventive measures and detection capabilities to protect against various forms of cross-site scripting attacks that could compromise the integrity and confidentiality of web applications.