CVE-2000-0205 in OfficeScan
Summary
by MITRE
Trend Micro OfficeScan allows remote attackers to replay administrative commands and modify the configuration of OfficeScan clients.
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Analysis
by VulDB Data Team • 04/21/2026
The vulnerability identified as CVE-2000-0205 represents a critical security flaw in Trend Micro OfficeScan, a widely deployed endpoint security solution that was prevalent in enterprise environments during the early 2000s. This weakness stems from insufficient authentication mechanisms within the OfficeScan administrative interface, allowing remote attackers to exploit a command replay vulnerability that fundamentally undermines the security posture of organizations relying on this protection platform. The vulnerability specifically affects the communication protocols used by OfficeScan servers to manage client configurations, creating an attack surface that adversaries could leverage without proper authorization.
The technical implementation of this flaw involves the improper handling of administrative commands within the OfficeScan server software, where authentication tokens or session identifiers are either not properly validated or are susceptible to replay attacks. Attackers can exploit this weakness by intercepting legitimate administrative communications between the OfficeScan server and its clients, then replaying these commands to modify security policies, update virus definitions, or potentially disable security features entirely. This vulnerability operates at the application layer and specifically targets the administrative communication channels that OfficeScan uses to maintain centralized control over distributed client endpoints. The flaw essentially allows unauthorized modification of security configurations without proper authentication, creating a backdoor for malicious actors to compromise the entire OfficeScan management infrastructure.
The operational impact of this vulnerability extends far beyond simple configuration changes, as it provides attackers with the capability to fundamentally alter the security posture of affected networks. Organizations utilizing OfficeScan would face the risk of complete administrative control being seized by unauthorized parties, potentially allowing attackers to disable security protections, install malicious software, or redirect security policies to facilitate further attacks. This vulnerability directly violates the principle of least privilege and undermines the integrity of the security management system, as it allows attackers to modify configurations that should only be accessible to authorized administrators. The implications are particularly severe in enterprise environments where OfficeScan serves as a central security management platform, as the compromise of administrative functions can lead to widespread network infiltration and data breaches.
Mitigation strategies for CVE-2000-0205 should focus on immediate network segmentation and access control measures to limit exposure of OfficeScan administrative interfaces to untrusted networks. Organizations should implement strong authentication mechanisms including multi-factor authentication for administrative access, establish secure communication channels using encrypted protocols, and deploy network monitoring tools to detect anomalous administrative activities. The vulnerability aligns with CWE-305 authentication weakness categories and maps to attack techniques described in the MITRE ATT&CK framework under the T1078 legitimate credentials and T1566 credential access tactics. Security administrators should also consider implementing network access controls to restrict direct access to OfficeScan administrative ports, deploy intrusion detection systems to monitor for command replay attempts, and establish regular audit procedures to detect unauthorized configuration changes. Additionally, organizations should ensure that all OfficeScan installations are updated to patched versions that address this specific authentication vulnerability, as the original flaw was remediated through proper session management and command validation mechanisms that prevent replay attacks.