CVE-2000-0100 in Systems Management Server
Summary
by MITRE
The SMS Remote Control program is installed with insecure permissions, which allows local users to gain privileges by modifying or replacing the program.
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Analysis
by VulDB Data Team • 03/28/2025
The vulnerability described in CVE-2000-0100 represents a classic privilege escalation flaw within the SMS Remote Control program, a component of Microsoft Systems Management Server that was widely deployed in enterprise environments during the late 1990s and early 2000s. This issue stems from the program's installation with overly permissive file system permissions that fail to adequately restrict access controls, creating a fundamental security weakness that directly undermines the principle of least privilege. The vulnerability is categorized under CWE-276, which specifically addresses incorrect permissions for critical resources, and aligns with ATT&CK technique T1068, which covers privilege escalation through insecure permissions. The SMS Remote Control program was designed to enable remote system administration and management tasks, making it a critical component in enterprise IT infrastructure and therefore a prime target for exploitation.
The technical flaw manifests when the SMS Remote Control program is installed with default permissions that allow local users to modify or replace core executable files without requiring administrative privileges. This insecure configuration creates a path for malicious users to inject arbitrary code or replace legitimate binaries with malicious equivalents, effectively allowing them to execute arbitrary commands with elevated privileges. The vulnerability does not require network access or complex exploitation techniques, making it particularly dangerous as it can be exploited by any local user with basic system access. The program's installation typically occurs with world-write permissions on critical executable files, enabling attackers to modify the program's behavior or replace it entirely with a malicious version that maintains the same name and functionality but executes different code. This flaw directly violates standard security practices for system administration tools and represents a failure in proper access control implementation.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential system compromise and data breaches within enterprise environments. When local users can modify or replace the SMS Remote Control program, they effectively gain the ability to perform administrative tasks on behalf of the system, potentially leading to unauthorized access to sensitive data, system manipulation, and the installation of persistent backdoors. The vulnerability becomes particularly dangerous in multi-user environments where users may have legitimate access to systems but should not possess administrative privileges. Attackers can leverage this flaw to escalate their privileges and then proceed with further exploitation techniques, such as credential theft, network reconnaissance, or establishing persistent access. The impact is amplified because the SMS Remote Control program typically runs with elevated privileges, making any compromise of its integrity a significant security incident that could affect entire network segments.
Mitigation strategies for CVE-2000-0100 require immediate remediation through proper permission configuration and access control implementation. Organizations should immediately review and correct file permissions for the SMS Remote Control program, ensuring that only authorized administrators possess write access to critical executable files. This involves implementing proper discretionary access controls and removing unnecessary write permissions for local users. The recommended approach includes setting appropriate file ownership and permission levels using standard Windows security mechanisms such as NTFS permissions, ensuring that only domain administrators or specific system accounts can modify the program files. Additionally, organizations should implement regular security audits to verify that critical system components maintain appropriate access controls and should consider implementing application whitelisting solutions to prevent unauthorized modifications to system executables. The vulnerability also highlights the importance of proper software installation procedures and the need for security configuration baselines that enforce secure default settings for all enterprise software deployments.