CVE-2007-3602 in vtiger
Summary
by MITRE
The SOAP webservice in vtiger CRM before 5.0.3 does not ensure that authenticated accounts are active, which allows remote authenticated users with inactive accounts to access and modify data, as demonstrated by the Thunderbird plugin.
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Analysis
by VulDB Data Team • 07/20/2021
The vulnerability identified as CVE-2007-3602 affects the SOAP web service implementation within vtiger CRM versions prior to 5.0.3, representing a critical authentication bypass flaw that undermines the integrity of the application's access control mechanisms. This issue stems from insufficient validation of account status during the authentication process, specifically within the web service layer that serves as a bridge for external applications to interact with the CRM system. The vulnerability is particularly concerning because it allows attackers to exploit inactive user accounts, which should theoretically be restricted from accessing system resources, thereby creating a persistent security weakness that can be leveraged for unauthorized data manipulation.
The technical flaw manifests in the SOAP web service implementation where the authentication routine fails to verify whether the authenticated user account remains in an active state before granting access privileges. This oversight creates a scenario where even users whose accounts have been deactivated or suspended can continue to authenticate successfully and perform operations within the system. The vulnerability is particularly evident when utilizing the Thunderbird plugin, which demonstrates how third-party integrations can be exploited to leverage this weakness. The SOAP service interface provides a standardized method for remote access to CRM data, but the lack of proper account status verification creates a direct pathway for privilege escalation through inactive accounts.
The operational impact of this vulnerability extends beyond simple unauthorized access, as inactive accounts that are typically disabled for security reasons can be used to modify sensitive customer data, create new records, or perform administrative functions within the CRM system. This weakness allows attackers to maintain persistence within the system even after account deactivation, potentially leading to data corruption, information disclosure, or unauthorized transactions. The vulnerability affects the fundamental principle of least privilege enforcement, where inactive accounts should be completely restricted from system access. This issue directly violates security best practices and creates a window for insider threat exploitation, where malicious actors can maintain access through compromised or inactive accounts that should have been properly revoked.
Mitigation strategies for CVE-2007-3602 require immediate implementation of account status verification within the SOAP authentication process, ensuring that all authenticated sessions validate the active status of user accounts before granting access privileges. Organizations should implement comprehensive account lifecycle management policies that enforce immediate deactivation of user accounts upon termination or suspension, coupled with regular audits to identify and remediate inactive accounts that may still maintain access. The recommended solution involves updating to vtiger CRM version 5.0.3 or later, which includes enhanced authentication controls that properly validate account status during web service authentication. Additionally, security monitoring should be implemented to detect anomalous access patterns from potentially inactive accounts, and system administrators should establish regular account reviews to identify and disable unused or suspicious accounts.
This vulnerability aligns with CWE-631 improper authorization and CWE-284 improper access control, representing a failure in access control enforcement that allows unauthorized operations through valid authentication. The ATT&CK framework categorizes this as privilege escalation through credential reuse, where inactive credentials maintain access privileges. The vulnerability demonstrates how web service interfaces can become attack vectors when proper authentication controls are not implemented, particularly in enterprise applications where third-party integrations increase the attack surface. Organizations should implement mandatory account status checks in all web service interfaces and establish robust monitoring for unauthorized access attempts, particularly those originating from accounts that should have been deactivated. The security implications extend to compliance requirements where maintaining proper access controls is essential for protecting sensitive customer data and ensuring regulatory adherence.