CVE-2012-2238 in trytond
Summary
by MITRE
trytond 2.4: ModelView.button fails to validate authorization
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Analysis
by VulDB Data Team • 02/26/2024
The vulnerability identified as CVE-2012-2238 affects trytond version 2.4 and represents a critical authorization bypass flaw within the ModelView.button functionality. This issue resides in the application's access control mechanisms, where the system fails to properly validate user permissions before executing button actions. The vulnerability stems from insufficient input validation and authorization checks within the ModelView class, specifically in how it processes button events that trigger business logic operations. When users interact with buttons in the trytond interface, the system should verify that the authenticated user possesses the necessary privileges to perform the requested action. However, the flawed implementation allows unauthorized operations to proceed without proper validation.
The technical flaw manifests in the ModelView.button method which handles user-initiated actions through the graphical interface. This method typically processes button clicks and executes corresponding business logic functions, but due to the missing authorization validation, it accepts requests from any authenticated user regardless of their actual permissions. The vulnerability creates a path for privilege escalation where users with limited access rights can potentially execute operations that should be restricted to administrators or users with specific roles. This authorization bypass occurs because the system relies on incomplete permission checks that do not adequately verify whether the requesting user has the appropriate security context for the action being performed. The flaw operates at the application layer and can be exploited through the web interface or API endpoints that utilize the ModelView.button functionality.
The operational impact of this vulnerability is significant as it enables malicious or unauthorized users to perform actions that could compromise system integrity and data confidentiality. Attackers could exploit this vulnerability to execute privileged operations such as modifying user permissions, accessing restricted data, or performing administrative functions without proper authorization. The vulnerability affects all users who have authenticated access to the trytond system, making it particularly dangerous in multi-user environments where different security levels are expected. This authorization bypass could lead to data breaches, system compromise, and unauthorized modifications to business processes that the system is designed to protect. The impact extends beyond simple access control violations to potentially enable more severe security incidents including privilege escalation and unauthorized system manipulation.
Organizations using trytond version 2.4 should immediately implement mitigations to address this vulnerability. The primary remediation involves patching the application to version 2.4.1 or later, which contains the necessary authorization validation fixes. Administrators should also review and enforce proper access control policies, ensuring that user roles and permissions are correctly configured to limit access to sensitive operations. Additional mitigations include implementing network-level controls to restrict access to the application, enabling detailed logging of button operations for monitoring, and conducting regular security assessments to identify potential unauthorized access attempts. The vulnerability aligns with CWE-284, which describes improper access control, and maps to ATT&CK technique T1078 for valid accounts and privilege escalation. Organizations should also consider implementing defense-in-depth strategies including multi-factor authentication, regular security updates, and comprehensive access control reviews to prevent similar authorization bypass vulnerabilities from occurring in other components of their information systems.