CVE-2007-4755 in Alien Arena 2007
Summary
by MITRE
Alien Arena 2007 6.10 and earlier allows remote attackers to cause a denial of service (client disconnect) by sending a client_connect command in a forged packet from the server to a client. NOTE: client IP addresses are available via product-specific queries.
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Analysis
by VulDB Data Team • 10/30/2017
The vulnerability identified as CVE-2007-4755 affects Alien Arena 2007 version 6.10 and earlier, representing a significant security flaw that enables remote attackers to disrupt client-server communications within the game environment. This issue stems from insufficient input validation mechanisms within the game's networking protocol implementation, specifically concerning how client connection commands are processed. The vulnerability operates through a sophisticated manipulation of network packets that can be exploited to send forged client_connect commands from a malicious server to legitimate clients, causing unintended disconnections that disrupt gameplay and user experience.
The technical nature of this vulnerability aligns with CWE-20, which describes improper input validation, and demonstrates how network protocol implementations can be manipulated to cause denial of service conditions. The flaw exploits the trust relationship that exists between game clients and servers, where legitimate connection commands are processed without adequate verification of their origin or authenticity. Attackers can leverage this weakness by crafting malicious packets that appear to originate from the server but contain forged client_connect commands designed to trigger client-side disconnect behavior. The vulnerability becomes particularly dangerous because it operates at the network protocol level, making it difficult to detect through conventional application-level security measures.
The operational impact of CVE-2007-4755 extends beyond simple service disruption to potentially compromise the integrity of multiplayer gaming sessions and the overall user experience within the Alien Arena 2007 environment. When exploited, this vulnerability can cause legitimate players to be disconnected from servers, disrupting ongoing games and potentially leading to loss of progress or competitive disadvantages. The fact that client IP addresses are accessible through product-specific queries adds another layer of complexity to the attack surface, as attackers can potentially correlate connection data with other network information to enhance their exploitation capabilities. This vulnerability particularly affects multiplayer gaming environments where server-client communication stability is critical for maintaining session integrity and user engagement.
Mitigation strategies for this vulnerability should focus on implementing robust packet validation mechanisms and establishing proper authentication protocols for all network communications. System administrators should ensure that all affected versions of Alien Arena 2007 are updated to the latest available patches, which typically include enhanced input validation and proper command origin verification. Network-level defenses should be implemented to monitor for anomalous packet patterns that might indicate exploitation attempts, while also considering the application of intrusion detection systems that can identify suspicious client_connect command sequences. The vulnerability also highlights the importance of following secure coding practices and implementing the principle of least privilege in network protocol design, ensuring that only legitimate commands from verified sources are processed within the client application. Additionally, organizations should consider implementing network segmentation and access controls to limit the potential impact of such vulnerabilities across their gaming infrastructure.