CVE-2008-6529 in Living Local
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in listtest.php in eZoneScripts Living Local 1.1 allows remote attackers to inject arbitrary web script or HTML via the r parameter.
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Analysis
by VulDB Data Team • 11/18/2024
The CVE-2008-6529 vulnerability represents a classic cross-site scripting flaw in the eZoneScripts Living Local 1.1 web application, specifically within the listtest.php script. This vulnerability arises from insufficient input validation and output sanitization mechanisms that fail to properly handle user-supplied data. The affected parameter r in the listtest.php endpoint creates an attack vector where malicious actors can inject arbitrary web scripts or HTML content into the application's response. The vulnerability classification aligns with CWE-79 which defines improper neutralization of input during web page generation, making it a prime example of how inadequate data sanitization can compromise web application security. The issue stems from the application's failure to implement proper encoding or filtering of user inputs before rendering them in web pages, creating a persistent security weakness that can be exploited across multiple user sessions.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within the r parameter, which is then executed in the victim's browser when the page loads. This allows attackers to perform various malicious activities including session hijacking, credential theft, defacement of web content, or redirection to malicious sites. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous as it can be leveraged by anyone who can influence the r parameter value. The attack vector demonstrates a clear breakdown in the principle of least privilege and proper input validation, where the application trusts user input without adequate sanitization. This type of vulnerability is categorized under the ATT&CK framework as part of the Web Application Attack Techniques, specifically targeting the execution of malicious code through user input manipulation.
The operational impact of CVE-2008-6529 extends beyond simple data theft or defacement, as it can enable attackers to establish persistent access to user sessions and potentially compromise the entire web application infrastructure. An attacker could use this vulnerability to inject malicious scripts that steal cookies, redirect users to phishing sites, or even deploy additional malware. The vulnerability affects the confidentiality, integrity, and availability of the web application, potentially leading to complete system compromise if combined with other vulnerabilities. Organizations using eZoneScripts Living Local 1.1 face significant risks including unauthorized data access, reputational damage, and potential regulatory compliance violations. The vulnerability's persistence means that once exploited, the malicious code continues to execute until the application is patched or the affected parameter is properly sanitized.
Mitigation strategies for this vulnerability must address the root cause through comprehensive input validation and output encoding mechanisms. The primary solution involves implementing proper parameter sanitization techniques that filter or encode all user inputs before they are processed or displayed in web responses. Organizations should deploy web application firewalls that can detect and block malicious script injection attempts, while also implementing Content Security Policy headers to prevent unauthorized script execution. The remediation process requires thorough code review and patching of the listtest.php script to ensure all user-supplied parameters are properly validated and escaped. Security teams should also implement regular vulnerability scanning and penetration testing to identify similar weaknesses in other application components. Additionally, developers should follow secure coding practices that align with OWASP Top Ten recommendations, particularly those addressing input validation and output encoding to prevent similar XSS vulnerabilities from occurring in future releases. The vulnerability serves as a critical reminder of the importance of defensive programming and the necessity of implementing multiple layers of security controls to protect against common web application threats.