CVE-2004-1751 in Ground Control II: Operation Exodus
Summary
by MITRE
Ground Control II: Operation Exodus 1.0.0.7 and earlier allows remote servers to cause a denial of service (client or server crash) via a large packet, which generates a "Message too long" socket error that is treated as a critical error.
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Analysis
by VulDB Data Team • 07/14/2025
The vulnerability described in CVE-2004-1751 affects Ground Control II: Operation Exodus version 1.0.0.7 and earlier, representing a classic denial of service weakness in networked gaming applications. This issue stems from inadequate input validation and error handling within the game's networking stack, where the application fails to properly manage oversized network packets that exceed the system's message buffer limits. The flaw manifests when a remote server transmits a packet exceeding the maximum allowable size, triggering a "Message too long" socket error that the application treats as a critical failure rather than a recoverable condition. This design oversight creates a scenario where legitimate network traffic can be exploited to disrupt service availability for all connected clients, effectively rendering the gaming session inoperable.
From a technical perspective, the vulnerability operates at the socket level of network communication, where the underlying operating system enforces message size limits based on the socket buffer configuration. The game client or server application receives a packet that exceeds the maximum message size allowed by the system's socket implementation, resulting in the EMSGSIZE error code being generated. This error condition is not properly caught and handled by the game's networking code, instead being escalated to a critical error state that terminates the application process or causes an unhandled exception that crashes the entire client or server instance. The issue demonstrates poor defensive programming practices and violates fundamental security principles of robust error handling in networked applications.
The operational impact of this vulnerability extends beyond simple service disruption to encompass broader implications for gaming infrastructure and network reliability. When exploited, the vulnerability can cause cascading failures in multiplayer gaming environments where multiple players rely on stable server connections, potentially affecting entire gaming sessions and community engagement. The attack vector is particularly concerning because it requires no authentication or specialized privileges, making it accessible to any remote attacker who can establish a connection to the target system. This vulnerability directly maps to CWE-122, which addresses buffer overflow conditions in socket operations, and aligns with ATT&CK technique T1498 for network denial of service attacks. The flaw represents a critical weakness in the game's security architecture, as it allows attackers to exploit fundamental network protocols rather than targeting application-specific vulnerabilities.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and error handling mechanisms within the networking code. Developers should configure socket buffer sizes appropriately and implement graceful degradation when oversized packets are encountered, rather than allowing critical errors to terminate the application. The solution involves adding bounds checking for incoming network messages, implementing proper exception handling for socket errors, and ensuring that oversized packets are either dropped silently or handled in a manner that preserves service availability. Additionally, network administrators should consider implementing rate limiting and packet filtering mechanisms at the network level to prevent malicious packet flooding attacks. Regular security testing and code reviews should be conducted to identify similar vulnerabilities in other networked applications, particularly those that handle real-time communication protocols. The vulnerability serves as a reminder of the importance of secure coding practices and the need for robust error handling in networked applications to prevent exploitation through simple denial of service vectors.