CVE-2005-1372 in netvault
Summary
by MITRE
nvstatsmngr.exe process in bakbone netvault 7.1 does not properly drop privileges before opening files which allows local users to gain privileges via the help menu.
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Analysis
by VulDB Data Team • 07/08/2018
The vulnerability identified as CVE-2005-1372 resides within the nvstatsmngr.exe process of BakBone NetVault version 7.1, representing a critical privilege escalation flaw that directly impacts system security. This issue manifests when the application fails to properly drop elevated privileges before performing file operations, creating a pathway for local attackers to exploit the system. The vulnerability specifically leverages the help menu functionality as an attack vector, demonstrating how seemingly benign user interface elements can become critical security weaknesses when not properly secured.
The technical implementation of this vulnerability stems from improper privilege management within the NetVault application's process execution model. When nvstatsmngr.exe handles help menu requests, it maintains elevated privileges that should be dropped before file access operations occur. This design flaw allows local users to manipulate the application's behavior through the help menu interface, effectively bypassing normal access controls. The process fails to implement proper privilege separation mechanisms that would normally occur during file I/O operations, creating an environment where unprivileged users can execute privileged actions.
From an operational perspective, this vulnerability presents a significant risk to systems running BakBone NetVault 7.1, as local users can escalate their privileges to gain administrative access to the underlying system. The attack requires only local system access and knowledge of the application's help menu functionality, making it particularly dangerous in environments where multiple users share systems or where user accounts may be compromised. The impact extends beyond simple privilege escalation, as successful exploitation could lead to complete system compromise, data theft, or further lateral movement within the network. This vulnerability directly aligns with CWE-279, which addresses improper handling of privileges, and represents a classic example of privilege creep in application design.
The attack surface for this vulnerability is relatively narrow but highly impactful, as it requires local system access and specifically targets the help menu functionality of a backup application. However, the implications are severe given that backup applications often run with elevated privileges to perform their functions, making them attractive targets for privilege escalation attacks. Security practitioners should note that this vulnerability demonstrates the importance of principle of least privilege implementation and proper privilege dropping mechanisms in system processes. Organizations should implement immediate mitigations including privilege escalation controls, application whitelisting, and monitoring for unusual file access patterns. The vulnerability also highlights the need for regular security assessments of application interfaces and the importance of following secure coding practices that prevent privilege escalation through seemingly innocuous application features.
This vulnerability exemplifies ATT&CK technique T1068, which covers privilege escalation through local exploitation, and demonstrates how attackers can leverage application-specific weaknesses to gain elevated system access. The remediation approach should include immediate patching of the NetVault application to version 7.2 or later, which addresses this specific privilege escalation issue. Additionally, system administrators should implement comprehensive monitoring for unauthorized privilege escalation attempts and ensure proper user access controls are in place to limit local system access where possible. The vulnerability underscores the critical importance of privilege management in backup and recovery systems, which often serve as prime targets for attackers seeking persistent access to enterprise environments.