CVE-2000-0072 in Visual Casel
Summary
by MITRE
Visual Casel (Vcasel) does not properly prevent users from executing files, which allows local users to use a relative pathname to specify an alternate file which has an approved name and possibly gain privileges.
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Analysis
by VulDB Data Team • 10/21/2024
The vulnerability identified as CVE-2000-0072 affects Visual Casel (Vcasel) software, a component of the Microsoft Visual Studio environment that handles case-sensitive file operations. This flaw represents a classic path traversal attack vector where the application fails to properly validate file paths during execution operations. The vulnerability stems from insufficient input sanitization and path resolution mechanisms within the software's file handling routines. Attackers can exploit this weakness by crafting malicious file paths that leverage relative pathnames to access and execute unauthorized files with approved names, effectively bypassing normal security controls.
The technical implementation of this vulnerability involves the software's failure to properly canonicalize or resolve file paths before executing operations. When Visual Casel processes file requests, it does not adequately verify that the specified file paths are within expected directories or that they properly resolve to legitimate locations. This allows attackers to construct relative path references that can traverse directory boundaries and access files that would normally be restricted. The flaw specifically manifests when the application accepts user-supplied pathnames without sufficient validation, enabling arbitrary file execution through carefully crafted pathname sequences that exploit the software's path resolution behavior.
From an operational impact perspective, this vulnerability creates a significant privilege escalation risk for local attackers who can leverage the path traversal mechanism to execute malicious code with elevated privileges. The attack requires local system access but does not need network connectivity or complex exploitation techniques. The vulnerability affects the integrity and confidentiality of the system by allowing unauthorized code execution, potentially leading to complete system compromise. Organizations using Visual Casel software are at risk of unauthorized access, data theft, and system infiltration through this pathway. The vulnerability also impacts the overall security posture by demonstrating poor input validation practices that could affect other components of the application stack.
The vulnerability aligns with CWE-22 Path Traversal and CWE-78 Improper Neutralization of Special Elements in Output Used by a Downstream Component, representing a fundamental flaw in input validation and path resolution. From an attack framework perspective, this vulnerability maps to ATT&CK technique T1059 Command and Scripting Interpreter, specifically the execution of malicious code through file path manipulation, and T1548.001 Abuse Elevation of Privilege. Mitigation strategies include implementing strict path validation mechanisms that ensure all file paths are properly resolved and canonicalized before processing, enforcing directory restrictions on file operations, and implementing proper input sanitization. Organizations should also consider applying the principle of least privilege, restricting file system access for applications, and implementing robust file access controls. Additionally, regular security updates and patches should be applied to address known vulnerabilities in development tools and environments.