CVE-2005-0352 in Servers Alive
Summary
by MITRE
servers alive 4.1 and 5.0 when running as a service does not drop system privileges before loading local manual under the help menu which allows local users to gain privileges.
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Analysis
by VulDB Data Team • 06/23/2018
The vulnerability identified as CVE-2005-0352 affects servers alive versions 4.1 and 5.0 when operating as Windows services. This represents a critical privilege escalation flaw that stems from improper privilege management during service execution. The vulnerability occurs specifically when the application loads local manual files through the help menu functionality, creating an avenue for local attackers to exploit the service's elevated privileges. The core issue lies in the service's failure to properly drop administrative privileges before processing user-requested help documentation, which is a fundamental security principle in service design and privilege separation.
This vulnerability aligns with CWE-276, which addresses improper privilege management, and demonstrates a classic case of privilege escalation through insufficient access control mechanisms. The flaw operates under the principle that services running with elevated privileges should never perform operations that could potentially load untrusted local content without first reducing their privilege level. When the servers alive service executes the help menu functionality, it processes local manual files without dropping its administrative rights, thereby allowing any local user to leverage this behavior to execute code with elevated privileges. The attack vector is particularly concerning because it requires no network access or remote exploitation capabilities, making it accessible to any user with local system access.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential system compromise and data exposure. Local users who can access the service's help functionality can effectively elevate their privileges to the system level, potentially gaining access to sensitive system files, registry entries, and other privileged resources. This vulnerability directly impacts the principle of least privilege, which is fundamental to secure system design and is referenced in various security frameworks including the NIST Cybersecurity Framework. The vulnerability creates a persistent threat vector that remains active as long as the service is running with elevated privileges, making it particularly dangerous in multi-user environments or systems where local access cannot be strictly controlled.
Mitigation strategies for this vulnerability should focus on immediate privilege reduction mechanisms and service hardening practices. System administrators should ensure that the servers alive service runs with the minimum required privileges necessary for its operation, and that any file loading operations occur with reduced privilege levels. The recommended approach involves implementing proper privilege dropping before executing any local file operations, which aligns with the ATT&CK technique T1068 for privilege escalation through service manipulation. Additionally, organizations should consider implementing application whitelisting controls and restricting local access to systems running vulnerable services. Regular security assessments and patch management processes should be enforced to address such privilege escalation vulnerabilities, as they represent common attack vectors that adversaries frequently target in both enterprise and government environments. The vulnerability serves as a reminder of the critical importance of privilege separation in service design and the necessity of following secure coding practices that prevent elevation of privileges during runtime operations.