CVE-2014-1427 in maas
Summary
by MITRE
A vulnerability in the REST API of Ubuntu MAAS allows an attacker to cause a logged-in user to execute commands via cross-site scripting. This issue affects MAAS versions prior to 1.9.2.
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Analysis
by VulDB Data Team • 09/06/2023
The vulnerability identified as CVE-2014-1427 represents a critical cross-site scripting flaw within the REST API of Ubuntu MAAS version 1.9.1 and earlier. This vulnerability stems from inadequate input validation and output encoding mechanisms within the API endpoints that handle user requests, creating an environment where malicious actors can inject arbitrary script code into web responses. The flaw specifically manifests when the system fails to properly sanitize user-supplied data before rendering it in web interfaces, allowing attackers to exploit this weakness through crafted API requests that ultimately lead to script execution in the context of a logged-in user's browser session.
The technical implementation of this vulnerability aligns with CWE-79, which describes cross-site scripting weaknesses where web applications fail to properly validate or encode user-controllable data. The attack vector typically involves an attacker crafting malicious input through the MAAS REST API endpoints that are designed to accept various parameters and data structures. When a logged-in user interacts with the affected system and the malicious content is processed and displayed in the web interface, the embedded scripts execute with the privileges of the authenticated user. This creates a significant risk as the attacker can leverage the user's session to perform actions that the user is authorized to perform, potentially including system configuration changes, data access, or command execution within the MAAS environment.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with a foothold for more sophisticated attacks within the MAAS infrastructure. Since MAAS serves as a bare metal provisioning system that manages large-scale server deployments, successful exploitation could enable attackers to manipulate server provisioning workflows, access sensitive configuration data, or potentially escalate privileges within the managed infrastructure. The vulnerability affects not just individual user sessions but represents a systemic risk to the entire MAAS deployment, particularly in environments where multiple administrators or users interact with the system. Attackers could leverage this weakness to establish persistent access patterns or to gather information about the underlying infrastructure that could be used for further exploitation attempts.
The remediation approach for CVE-2014-1427 focuses primarily on upgrading the MAAS installation to version 1.9.2 or later, which contains the necessary patches to address the input validation and output encoding deficiencies. Organizations should also implement comprehensive input sanitization measures and ensure that all user-supplied data is properly validated before being processed or displayed in web interfaces. Security teams should conduct thorough testing to verify that the upgrade resolves the vulnerability without introducing compatibility issues in existing workflows. Additionally, implementing proper web application firewall rules to detect and block suspicious API requests can provide an additional layer of protection, though this should not replace the primary remediation measures. The vulnerability demonstrates the critical importance of maintaining up-to-date software versions and implementing robust security practices within infrastructure management systems, particularly those handling privileged operations in enterprise environments. This flaw exemplifies why organizations must maintain continuous security monitoring and vulnerability management processes to prevent exploitation of known weaknesses in critical infrastructure components.