CVE-2000-0396 in Carello
Summary
by MITRE
The add.exe program in the Carello shopping cart software allows remote attackers to duplicate files on the server, which could allow the attacker to read source code for web scripts such as .ASP files.
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Analysis
by VulDB Data Team • 10/16/2025
The vulnerability identified as CVE-2000-0396 resides within the Carello shopping cart software's add.exe program, representing a critical file manipulation flaw that enables remote attackers to execute unauthorized file duplication operations on targeted web servers. This vulnerability falls under the category of insecure file handling and improper input validation, which are commonly associated with CWE-22 (Path Traversal) and CWE-73 (External Control of File Name or Path) classifications. The flaw specifically affects web applications that process user-supplied input without adequate sanitization, creating an attack surface where malicious actors can manipulate file system operations through seemingly benign program interfaces.
The technical implementation of this vulnerability exploits the lack of proper input validation within the add.exe component, allowing attackers to craft malicious requests that bypass normal file system access controls. When the program processes user input intended for file operations, it fails to properly validate or sanitize the file paths provided by remote users, enabling arbitrary file duplication commands to be executed with the privileges of the web server process. This weakness directly enables attackers to replicate files from the server's file system, potentially including sensitive source code files such as .ASP scripts that contain business logic, database connection strings, and other proprietary information.
The operational impact of this vulnerability extends beyond simple file duplication, as it provides attackers with the capability to access and potentially exfiltrate sensitive source code from web applications. The ability to read .ASP files specifically poses significant risks to web application security since these files often contain database credentials, application logic, and other confidential information that could be leveraged for further attacks. The vulnerability essentially transforms a legitimate file operation function into a tool for unauthorized data access and potential system compromise, creating opportunities for attackers to escalate their privileges and conduct more sophisticated attacks against the affected infrastructure.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms within the add.exe program and related components. Organizations should ensure that all file system operations properly validate user input, implement strict path validation to prevent directory traversal attacks, and enforce proper access controls for file operations. The remediation process should include updating the Carello shopping cart software to versions that address this vulnerability, implementing web application firewalls to monitor and filter suspicious file operation requests, and establishing comprehensive logging and monitoring procedures to detect unauthorized file access attempts. This vulnerability also highlights the importance of following secure coding practices and conducting regular security assessments of web applications to identify and remediate similar flaws in the software development lifecycle, aligning with ATT&CK technique T1059 (Command and Scripting Interpreter) and T1566 (Phishing) when considering the broader attack surface implications.