CVE-2013-3650 in EC-CUBE
Summary
by MITRE
Directory traversal vulnerability in the lfCheckFileName function in data/class/pages/LC_Page_ResizeImage.php in LOCKON EC-CUBE before 2.12.5 allows remote attackers to read arbitrary image files via vectors involving the image parameter to resize_image.php, a different vulnerability than CVE-2013-3654.
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Analysis
by VulDB Data Team • 01/03/2022
The vulnerability identified as CVE-2013-3650 represents a directory traversal flaw within the LOCKON EC-CUBE e-commerce platform, specifically affecting versions prior to 2.12.5. This issue resides in the lfCheckFileName function located within the data/class/pages/LC_Page_ResizeImage.php file, which processes image resizing operations through the resize_image.php endpoint. The vulnerability enables remote attackers to access arbitrary image files stored on the server by manipulating the image parameter, creating a significant security risk for e-commerce platforms that rely on user-uploaded content management. The flaw demonstrates a classic path traversal weakness that can be exploited to bypass intended file access controls and retrieve sensitive data from the file system.
The technical implementation of this vulnerability stems from inadequate input validation within the lfCheckFileName function, which fails to properly sanitize or validate the image parameter before processing file system operations. Attackers can exploit this by crafting malicious input that includes directory traversal sequences such as ../ or ..\, allowing them to navigate outside the intended directory structure where user-uploaded images are stored. This weakness directly maps to CWE-22, which defines path traversal vulnerabilities as the exploitation of insufficient input validation to access files or directories outside the intended scope. The vulnerability operates at the application layer and can be classified under the ATT&CK technique T1083, which covers the discovery of system information through file and directory listing activities, though in this case the attack is more direct through file access rather than enumeration.
The operational impact of CVE-2013-3650 extends beyond simple information disclosure, as it can potentially lead to the exposure of sensitive user data, including but not limited to customer uploaded images, product catalog assets, and potentially system configuration files. In e-commerce environments, this vulnerability poses a serious risk to both business operations and customer privacy, as attackers could access proprietary product images, user-generated content, or even system files that might contain database credentials or other sensitive configuration data. The vulnerability's exploitation requires minimal technical expertise and can be automated, making it particularly dangerous in environments where multiple users have access to the image upload functionality. Organizations running affected versions of EC-CUBE face potential regulatory compliance violations, reputational damage, and financial losses due to data breaches that could result from unauthorized access to stored content.
Mitigation strategies for CVE-2013-3650 should prioritize immediate patching of affected systems to version 2.12.5 or later, which contains the necessary fixes for the directory traversal vulnerability. Organizations should implement proper input validation and sanitization measures for all file path parameters, ensuring that user-supplied input cannot contain directory traversal sequences or other malicious payloads. The implementation of a whitelist approach for acceptable file types and paths, combined with proper access controls and file system permissions, can significantly reduce the attack surface. Security teams should also consider implementing web application firewalls with rules specifically designed to detect and block directory traversal attempts, and conduct regular security assessments to identify similar vulnerabilities in other components of the application stack. Additionally, organizations should establish proper monitoring and logging mechanisms to detect unusual file access patterns that might indicate exploitation attempts, ensuring comprehensive protection against this and similar classes of vulnerabilities.