CVE-2000-0635 in MiniVend
Summary
by MITRE
The view_page.html sample page in the MiniVend shopping cart program allows remote attackers to execute arbitrary commands via shell metacharacters.
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Analysis
by VulDB Data Team • 10/13/2025
The vulnerability identified as CVE-2000-0635 represents a critical remote code execution flaw within the MiniVend shopping cart software, a widely deployed e-commerce solution in the late 1990s and early 2000s. This vulnerability specifically affects the view_page.html sample page component of the application, which serves as a demonstration interface for displaying product information and other content within the shopping cart environment. The flaw stems from insufficient input validation and sanitization mechanisms that fail to properly filter user-supplied data before processing it within the application's command execution context. This particular vulnerability aligns with CWE-77, which catalogs improper neutralization of special elements used in command execution contexts, making it a classic example of command injection vulnerability. The security implications extend beyond simple data exposure to encompass complete system compromise, as attackers can leverage this weakness to execute arbitrary commands on the underlying server with the privileges of the web application process.
The technical exploitation of this vulnerability occurs through the manipulation of input parameters that are directly incorporated into shell command invocations within the MiniVend application. When users interact with the vulnerable view_page.html page, the application processes user-provided data without adequate sanitization, allowing malicious actors to inject shell metacharacters such as semicolons, pipes, or backticks that trigger unintended command execution. This type of vulnerability falls under the ATT&CK framework's command and control category, specifically mapping to techniques involving the execution of malicious commands through web application interfaces. The attack vector typically involves crafting specially formatted URLs or form submissions that contain shell injection payloads, which are then interpreted by the server-side processing logic. The vulnerability demonstrates a fundamental flaw in the application's security architecture, where the separation between user input and system command execution is not properly enforced, creating an environment where malicious input can directly translate into system-level operations.
The operational impact of CVE-2000-0635 extends far beyond immediate data compromise, potentially enabling attackers to gain complete administrative control over affected systems. Successful exploitation allows threat actors to execute arbitrary commands on the target server, which could include commands to extract sensitive customer data, modify product catalogs, alter pricing information, or even establish persistent backdoors for future access. The vulnerability's remote nature means that attackers do not require physical access to the system or local network connectivity, making it particularly dangerous for publicly accessible web applications. Organizations running affected versions of MiniVend face significant risk of data breaches, financial losses, and regulatory compliance violations, as the vulnerability can be exploited by anyone with access to the vulnerable web application. The attack surface is further expanded by the fact that many organizations continued to use legacy versions of MiniVend well beyond the initial vulnerability disclosure period, prolonging exposure windows and increasing the overall threat landscape.
Mitigation strategies for CVE-2000-0635 require immediate remediation efforts including the implementation of proper input validation and sanitization mechanisms within the MiniVend application. Organizations should ensure that all user-supplied data is properly escaped or filtered before being processed in any command execution context, implementing robust parameter validation that rejects or neutralizes potentially dangerous shell metacharacters. The recommended approach aligns with security best practices outlined in industry standards such as the OWASP Top Ten and NIST cybersecurity guidelines, emphasizing the importance of input validation and secure coding practices. System administrators should also implement network-level protections including firewall rules to restrict access to vulnerable application components and consider deploying web application firewalls to detect and block malicious payloads. Additionally, organizations should conduct comprehensive security assessments of their web applications to identify similar vulnerabilities in other components and ensure that proper patch management processes are in place to address future security issues. The vulnerability serves as a critical reminder of the importance of secure coding practices and the necessity of regular security audits, particularly for legacy applications that may contain unpatched security flaws.