Application-Level Admin Tool with Inconsistent View of Underlying Operating System

Incomplete Base
Structure: Simple
Description

This vulnerability occurs when an administrative tool (like a web interface or API) fails to accurately display the true state of the underlying operating system it manages. The tool's view becomes inconsistent with reality, hiding critical resources like user accounts, processes, or files from the administrator.

Extended Description

Administrative tools for cloud platforms, network devices, or IoT systems often manage OS-level resources like user accounts. A critical security gap emerges when this management layer loses synchronization with the actual OS state. For instance, if an attacker adds a user account directly to the OS, this 'ghost account' might remain invisible in the admin panel. This discrepancy allows malicious activity to go undetected, as administrators rely on an incomplete and misleading view of their system's security posture. Attackers exploit this weakness by creating persistent backdoor accounts, often by chaining it with other vulnerabilities like command injection or logic flaws. A rogue administrator could also hide accounts for later use. Since the management tool doesn't reflect these changes, standard administrative reviews won't uncover them, allowing threats to persist undetected. Ensuring the management application's data model is always synchronized with a single, authoritative source of truth in the OS is essential for maintaining visibility and control.

Common Consequences 3
Scope: Access Control

Impact: Varies by Context

Scope: Accountability

Impact: Hide Activities

Scope: Other

Impact: Unexpected State

Potential Mitigations 1
Phase: Architecture and Design
Ensure that the admin tool refreshes its model of the underlying OS on a regular basis, and note any inconsistencies with configuration files or other data sources that are expected to have the same data.
Demonstrative Examples 1
Suppose that an attacker successfully gains root privileges on a Linux system and adds a new 'user2' account:

Code Example:

Attack
Other
other
This new user2 account would not be noticed on the web interface, if the interface does not refresh its data of available users.
It could be argued that for this specific example, an attacker with root privileges would be likely to compromise the admin tool or otherwise feed it with false data. However, this example shows how the discrepancy in critical data can help attackers to escape detection.
References 1
Ghost in the Shell Weakness
Tony Martin
13-02-2020
ID: REF-1070
Applicable Platforms
Languages:
Not Language-Specific : Undetermined
Technologies:
Web Based : Undetermined
Modes of Introduction
Architecture and Design
Implementation
Alternate Terms

Ghost in the Shell