CVE-2006-2441 in Pioneers meta-server
Summary
by MITRE
Pioneers meta-server before 0.9.55, when the server-console is not installed, allows remote attackers to cause a denial of service (crash) via certain requests from an older gnocatan client to create a new game.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 09/10/2017
The vulnerability described in CVE-2006-2441 affects the Pioneers meta-server software version 0.9.55 and earlier, representing a critical denial of service weakness that can be exploited by remote attackers. This issue specifically manifests when the server-console component is not installed on the target system, creating a condition where certain malformed requests from legacy gnocatan client software can trigger a complete system crash. The vulnerability stems from inadequate input validation and error handling mechanisms within the meta-server's request processing pipeline, particularly when handling game creation requests from older client versions that may not conform to current protocol specifications.
The technical flaw resides in the meta-server's inability to properly handle malformed or unexpected requests originating from deprecated gnocatan client implementations. When such requests are received, the system fails to implement proper exception handling or request sanitization procedures, leading to an uncontrolled crash of the server process. This represents a classic example of a buffer overflow or improper input validation vulnerability that can be categorized under CWE-20, which deals with improper input validation. The attack vector specifically targets the game creation functionality, where the meta-server attempts to process requests without adequate safeguards against malformed data structures or unexpected parameter combinations that older client versions might send.
From an operational perspective, this vulnerability presents significant risk to Pioneers meta-server deployments that rely on older client software or have not implemented the server-console component for proper monitoring and control. The impact extends beyond simple service disruption as the crash can potentially result in complete loss of game session management capabilities, forcing administrators to restart services manually and potentially causing data loss for ongoing games. The vulnerability affects the availability aspect of the system's security triad, as it can be exploited by any remote attacker with knowledge of the target system's configuration and the specific client version being used. This type of attack can be particularly problematic in multiplayer gaming environments where consistent server availability is crucial for user experience and game integrity.
The mitigation strategies for this vulnerability should focus on immediate patching of the Pioneers meta-server software to version 0.9.55 or later, which contains the necessary fixes for proper request handling. Additionally, administrators should ensure that the server-console component is properly installed and configured to provide better monitoring capabilities and error handling. Network-level protections such as firewalls or intrusion detection systems can be configured to filter out suspicious requests from known legacy client versions, though this approach is less robust than proper software patching. The vulnerability also highlights the importance of maintaining up-to-date client software and implementing proper end-of-life management for legacy systems, as referenced in the ATT&CK framework's mitigation strategies for maintaining software integrity and preventing exploitation of known vulnerabilities through outdated components. Organizations should also consider implementing redundant systems or failover mechanisms to minimize the impact of potential service disruptions caused by such denial of service attacks.