CVE-2007-1128 in Shop Kit Plus
Summary
by MITRE
shopkitplus allows remote attackers to obtain sensitive information via a request to (1) events.php with a curmonth[]=01 query string or (2) enc/stylecss.php with a changetheme[]= query string, which reveals the path in various error messages.
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Analysis
by VulDB Data Team • 10/13/2017
The vulnerability identified as CVE-2007-1128 affects the shopkitplus application, a web-based e-commerce platform that suffers from information disclosure flaws in its error handling mechanisms. This vulnerability resides in the application's inability to properly sanitize user input parameters, specifically within the events.php and enc/stylecss.php scripts. The flaw manifests when attackers submit crafted requests containing the curmonth[]=01 and changetheme[]= query string parameters respectively, which causes the application to generate error messages containing sensitive path information. This represents a classic information disclosure vulnerability that can be categorized under CWE-200, which specifically addresses the exposure of sensitive information through improper error handling.
The technical implementation of this vulnerability exploits the application's weak input validation and error reporting practices. When the events.php script processes the curmonth[]=01 parameter, it fails to properly validate the input format, allowing the malicious query string to trigger error conditions that inadvertently expose the server's file system paths. Similarly, the enc/stylecss.php script with the changetheme[]= parameter creates a similar scenario where path information leaks through error messages. This vulnerability operates at the application layer and can be exploited remotely without requiring authentication, making it particularly dangerous for publicly accessible web applications. The error messages generated by these scripts contain absolute file paths that can provide attackers with crucial information about the server's directory structure and deployment configuration.
The operational impact of this vulnerability extends beyond simple information disclosure, as the leaked path information can serve as a foundation for more sophisticated attacks. Attackers can use the exposed paths to understand the application's directory structure, potentially identifying other vulnerable components or files that may contain sensitive data. This information disclosure can facilitate path traversal attacks, directory listing vulnerabilities, or even help attackers craft more targeted exploitation strategies. The vulnerability creates a reconnaissance opportunity that aligns with the initial access phase of the MITRE ATT&CK framework, specifically targeting the 'Initial Access' and 'Credential Access' tactics. The exposure of file system paths can also aid in bypassing security controls and understanding the application's attack surface, making it easier to identify potential exploitation vectors for subsequent attacks.
The recommended mitigations for this vulnerability involve implementing proper input validation and error handling practices throughout the application. All user-supplied parameters should be strictly validated and sanitized before processing to prevent malformed inputs from triggering error conditions. The application should implement generic error messages that do not reveal internal system information, following the principle of least privilege in error reporting. Additionally, the application should be configured to log detailed error information internally while displaying only generic messages to end users. Security headers should be implemented to prevent path disclosure through HTTP responses, and regular security audits should be conducted to identify similar vulnerabilities in other application components. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts targeting this type of information disclosure vulnerability. The remediation efforts should align with security best practices outlined in OWASP Top Ten and NIST guidelines for web application security.