CVE-2007-4373 in Babo Violent
Summary
by MITRE
The server in Babo Violent 2 2.08.00 and earlier does not properly implement password protection, which might allow remote attackers to bypass authentication by reconnecting after a connection closes.
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Analysis
by VulDB Data Team • 10/29/2017
The vulnerability described in CVE-2007-4373 affects the server component of Babo Violent 2 version 2.08.00 and earlier, representing a critical authentication bypass flaw that undermines the security posture of the application. This issue stems from improper implementation of password protection mechanisms within the server architecture, creating a fundamental weakness that adversaries can exploit to gain unauthorized access to protected resources. The vulnerability specifically manifests when users reconnect to the server after an existing connection has been terminated, allowing attackers to circumvent the established authentication process through a simple reconnection sequence.
The technical root cause of this vulnerability lies in the server's failure to maintain proper session state management and authentication validation during connection lifecycle events. When a client disconnects from the server, the system should invalidate the previous authentication context and require re-authentication for subsequent connections. However, in vulnerable versions of Babo Violent 2, the server maintains authentication state information across connection boundaries, enabling attackers to reuse valid session tokens or authentication credentials without proper re-validation. This flaw operates at the application layer and represents a classic case of insufficient session management, which maps directly to CWE-613, which addresses Insufficient Session Expiration and improper handling of session state transitions.
From an operational perspective, this vulnerability creates significant risk for organizations using Babo Violent 2 as their primary server application. Attackers can exploit this weakness to gain access to restricted server resources, potentially leading to data compromise, unauthorized modifications, or complete system takeover. The attack vector is particularly concerning because it requires minimal sophistication - an attacker simply needs to reconnect to the server after a legitimate user has disconnected, making this vulnerability accessible to threat actors with basic technical knowledge. This authentication bypass can result in persistent unauthorized access to the server environment, allowing attackers to maintain their presence even after initial detection attempts.
The impact of this vulnerability extends beyond immediate unauthorized access to encompass potential data exfiltration, system compromise, and service disruption. Given that this affects the server component of a gaming application, the implications include unauthorized modification of game state, access to user accounts, and potential exploitation of the server for further attacks against other networked systems. Organizations should consider implementing immediate mitigations including updating to patched versions of the software, implementing additional authentication layers, and monitoring for suspicious connection patterns that might indicate exploitation attempts. The vulnerability also highlights the importance of proper session management and authentication state handling, principles that align with security frameworks such as NIST SP 800-53 and ISO 27001 requirements for access control and session management.
The exploitation of this vulnerability demonstrates the critical importance of proper authentication state handling in server applications and aligns with ATT&CK technique T1078.004 for Valid Accounts - Cloud Accounts, as attackers can leverage legitimate session tokens to maintain access. Security practitioners should implement connection monitoring, enforce strict session timeouts, and ensure that authentication contexts are properly invalidated upon connection termination to prevent exploitation of similar weaknesses in other applications. This vulnerability serves as a reminder of the fundamental security principle that authentication mechanisms must be robust across all connection states and lifecycle events to prevent unauthorized access through session manipulation techniques.