CVE-2015-8352 in Zen Cart
Summary
by MITRE
Directory traversal vulnerability in Zen Cart 1.5.4 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the act parameter to ajax.php.
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Analysis
by VulDB Data Team • 03/30/2025
The vulnerability identified as CVE-2015-8352 represents a critical directory traversal flaw within Zen Cart version 1.5.4, a widely used open-source e-commerce platform. This security weakness stems from insufficient input validation in the ajax.php script, which processes user-supplied parameters without adequate sanitization. The vulnerability specifically affects the act parameter, allowing malicious actors to manipulate file paths through the use of .. (dot dot) sequences that navigate upward through the directory structure. Such directory traversal attacks exploit the fundamental principle that web applications should not permit arbitrary file access beyond their intended scope, creating a dangerous pathway for unauthorized system exploitation.
The technical implementation of this vulnerability occurs when the application fails to properly validate or sanitize user input passed to the act parameter in ajax.php. Attackers can construct malicious URLs containing directory traversal sequences that bypass normal access controls, potentially enabling them to include and execute arbitrary local files on the server. This flaw operates at the application layer and can be exploited remotely without requiring authentication, making it particularly dangerous for online commerce platforms where sensitive customer data and business-critical information are stored. The vulnerability's impact is amplified by the fact that it allows for arbitrary code execution, potentially enabling attackers to gain complete control over the affected system.
From an operational perspective, this vulnerability poses severe risks to e-commerce businesses utilizing Zen Cart 1.5.4, as it provides attackers with the capability to access sensitive system files, customer databases, payment information, and administrative credentials. The exploitation chain typically involves crafting a malicious request that leverages the directory traversal to include system files such as configuration files containing database credentials, or even system binaries that could be executed to establish a persistent backdoor. The vulnerability's remote exploitability means that attackers can target affected systems from anywhere on the internet, making it an attractive target for automated scanning and exploitation campaigns. Organizations running vulnerable versions face potential data breaches, financial losses, and regulatory compliance violations that could result in significant reputational damage.
Security mitigations for CVE-2015-8352 primarily involve immediate patching of the affected Zen Cart version to the latest available release that addresses the directory traversal vulnerability. System administrators should also implement input validation measures at the application level, including proper parameter sanitization and the removal of dangerous characters from user inputs. Network-level protections such as web application firewalls can provide additional defense-in-depth measures by filtering out suspicious directory traversal patterns in HTTP requests. The vulnerability aligns with CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, and maps to attack techniques in the MITRE ATT&CK framework under the T1059 category for command and scripting interpreter. Organizations should also conduct comprehensive security audits of their web applications to identify similar vulnerabilities that could be exploited through similar attack vectors, ensuring that all input validation mechanisms are properly implemented and tested to prevent future incidents of this nature.