CVE-2002-0479 in Service Pack Manager 2000
Summary
by MITRE
Gravity Storm Service Pack Manager 2000 creates a hidden share (SPM2000c$) mapped to the C drive, which may allow local users to bypass access restrictions on certain directories in the C drive, such as system32, by accessing them through the hidden share.
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Analysis
by VulDB Data Team • 09/16/2025
The Gravity Storm Service Pack Manager 2000 vulnerability represents a critical access control flaw that undermines the security posture of affected systems through improper privilege management and hidden resource exposure. This vulnerability specifically affects systems running the Gravity Storm Service Pack Manager 2000 software, which is designed to manage service pack installations on windows operating systems. The flaw manifests as the automatic creation of a hidden administrative share named SPM2000c$ that maps directly to the system's C drive root directory. This hidden share operates outside normal Windows security mechanisms and is not visible through standard network browsing or share enumeration tools, creating a covert pathway for unauthorized access.
The technical implementation of this vulnerability stems from the software's failure to properly implement access controls for the automatically created hidden share. When the Service Pack Manager 2000 executes its installation or update processes, it creates this administrative share without proper authentication requirements or access restrictions. The share maps directly to the C drive root, which contains system directories including system32, program files, and other critical system locations. This design flaw allows local users who have access to the system to discover and utilize this hidden share to bypass normal file system permissions and access restricted directories that would typically require administrative privileges or specific permissions to access. The vulnerability operates under CWE-264, which categorizes improper privileges as a fundamental security weakness in access control mechanisms.
The operational impact of this vulnerability extends beyond simple unauthorized file access, creating a significant attack surface that can be exploited by malicious actors with local system access. Local users who can access the system can leverage this hidden share to gain access to sensitive system directories and potentially extract or modify critical system files. This capability can lead to privilege escalation, system compromise, or the ability to establish persistence within the affected system. The vulnerability particularly affects systems where local access is not properly restricted, such as shared workstations or systems with multiple user accounts where one user might have access to another user's account. According to ATT&CK framework, this vulnerability maps to T1078 (Valid Accounts) and T1059 (Command and Scripting Interpreter) as attackers can use local access to establish persistent access through the hidden share and potentially escalate privileges through the files accessible via this pathway.
Mitigation strategies for this vulnerability require immediate action to address the root cause of the hidden share creation and implement proper access controls. System administrators should immediately remove the SPM2000c$ share if it exists on systems, using command line tools or registry modifications to eliminate the hidden share. The recommended approach involves either uninstalling the Gravity Storm Service Pack Manager 2000 software entirely or applying the appropriate patches provided by the vendor to address the hidden share creation behavior. Additionally, implementing proper access control policies that restrict local access to systems and monitoring for unauthorized share creation activities can help detect similar vulnerabilities in other software components. Network administrators should also consider implementing network segmentation and access control lists to limit the potential impact of such vulnerabilities even if they are not immediately patched. The vulnerability highlights the importance of proper privilege management and access control implementation in system software, as outlined in security standards that emphasize the need for least privilege principles and proper authentication mechanisms for all system resources.