CVE-2003-0739 in Workstation
Summary
by MITRE
VMware Workstation 4.0.1 for Linux, build 5289 and earlier, allows local users to delete arbitrary files via a symlink attack.
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Analysis
by VulDB Data Team • 08/04/2025
This vulnerability exists in VMware Workstation 4.0.1 for Linux systems where the software fails to properly validate file paths during certain operations, creating a dangerous symlink attack vector that can be exploited by local users to delete arbitrary files on the system. The flaw stems from insufficient input validation and improper handling of symbolic links within the application's file operations, allowing attackers to manipulate the file system by creating malicious symbolic links that point to critical system files. This represents a classic privilege escalation vulnerability where local users can leverage the application's functionality to perform destructive actions beyond their intended scope.
The technical implementation of this vulnerability involves the exploitation of a race condition or improper path resolution mechanism within VMware Workstation's file handling processes. When the application processes file operations, it does not adequately verify whether the target paths are symbolic links or if they point to locations outside the intended scope. This allows attackers to place symbolic links in strategic locations where the application expects to find regular files, enabling them to redirect file operations to arbitrary locations on the filesystem. The vulnerability specifically affects systems running VMware Workstation 4.0.1 for Linux with build numbers up to and including 5289, making it a targeted issue for older installations. According to CWE guidelines, this maps to CWE-59, which describes improper handling of a symbolic link, and CWE-22, which addresses improper limitation of a pathname to a restricted directory.
The operational impact of this vulnerability is significant for systems running affected VMware Workstation versions, as local attackers can potentially delete critical system files, configuration data, or user information. The attack requires local system access but does not require network connectivity, making it particularly dangerous in environments where local privilege escalation is already possible. An attacker could use this vulnerability to delete essential system binaries, configuration files, or user data, potentially causing system instability or complete system compromise. The attack vector specifically targets the local user context, meaning that any user with access to the system can exploit this vulnerability to gain destructive capabilities against the system's file structure.
Mitigation strategies for this vulnerability should focus on immediate patching of affected VMware Workstation installations to the latest available versions that contain proper symbolic link handling and path validation. System administrators should ensure that all affected systems are updated promptly and that proper access controls are maintained to limit local user privileges where possible. Additional protective measures include implementing proper file system permissions, monitoring for suspicious symbolic link creation, and conducting regular security assessments to identify similar path traversal vulnerabilities in other applications. Organizations should also consider implementing principle of least privilege models to limit the potential damage from such local exploits. This vulnerability aligns with ATT&CK technique T1068, which covers local privilege escalation through exploitation of system vulnerabilities, and T1070, which addresses the use of file deletion as a destructive technique. The recommended remediation involves not only updating the software but also implementing comprehensive security monitoring to detect and prevent similar attacks in the future.