CVE-2006-6610 in Nexuiz
Summary
by MITRE
clientcommands in Nexuiz before 2.2.1 has unknown impact and remote attack vectors related to "remote console command injection."
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Analysis
by VulDB Data Team • 07/16/2019
The vulnerability identified as CVE-2006-6610 affects the Nexuiz game client software version 2.2.1 and earlier, specifically within the clientcommands functionality. This issue represents a critical security flaw that allows remote attackers to inject commands into the game client's console, potentially enabling unauthorized execution of arbitrary code. The vulnerability stems from insufficient input validation and sanitization mechanisms within the client's command processing subsystem, creating an attack surface that can be exploited over network connections without requiring local system access.
The technical flaw manifests in the clientcommands module where user-supplied input is not properly filtered or escaped before being processed by the console interpreter. This creates a command injection vulnerability that operates at the application layer, allowing attackers to execute malicious commands within the context of the running game client. The remote attack vector indicates that exploitation can occur through network-based communication channels, potentially leveraging game server interactions or peer-to-peer connections to deliver malicious payloads. This vulnerability aligns with CWE-77 and CWE-94 categories, which specifically address command injection flaws and code injection vulnerabilities respectively, both of which are classified as high-risk security issues in the Common Weakness Enumeration catalog.
The operational impact of this vulnerability extends beyond simple command execution, as it can potentially enable full client compromise and persistent access to affected systems. Attackers could leverage this vulnerability to execute arbitrary code, modify game state, access sensitive data, or even use the compromised client as a pivot point for attacking other networked systems. The remote nature of the attack means that even users who are not actively playing the game could be compromised through network-based attacks, making this vulnerability particularly dangerous in multiplayer gaming environments where network communication is frequent and widespread. This type of vulnerability can be mapped to ATT&CK technique T1059.007 for command and scripting interpreter, specifically targeting the Windows Command Prompt and PowerShell execution paths.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms within the clientcommands module, ensuring that all user-supplied data is properly escaped and filtered before processing. System administrators should immediately upgrade to Nexuiz version 2.2.1 or later, which contains the necessary patches to address this vulnerability. Network-level protections such as firewall rules that restrict unnecessary game client communication and intrusion detection systems that monitor for suspicious command injection patterns should also be implemented. Additionally, users should be educated about the risks of connecting to untrusted game servers and the importance of maintaining up-to-date software versions to prevent exploitation of known vulnerabilities. The vulnerability demonstrates the importance of secure coding practices and input validation in client-side applications, particularly those that process user-supplied data through interpreters or command execution pathways.