CVE-2006-1074 in Liero Xtreme
Summary
by MITRE
Jason Boettcher Liero Xtreme 0.62b and earlier allow remote attackers to cause a denial of service (application crash or hang) via a long argument to the connect command.
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Analysis
by VulDB Data Team • 09/09/2017
The vulnerability identified as CVE-2006-1074 affects Jason Boettcher Liero Xtreme version 0.62b and earlier, representing a classic buffer overflow condition that manifests through improper input validation during network communication. This issue specifically targets the connect command implementation within the game client, where attackers can exploit a lack of proper argument length checking to trigger application instability. The flaw resides in the client-side network handling code that fails to validate the length of command-line arguments passed to the connect function, creating an exploitable condition that can be leveraged remotely.
The technical implementation of this vulnerability demonstrates a fundamental failure in input sanitization and memory management practices within the legacy game client software. When a remote attacker sends a specially crafted argument exceeding predetermined buffer limits to the connect command, the application fails to handle the overflow gracefully and instead crashes or becomes unresponsive. This behavior aligns with CWE-121, which describes stack-based buffer overflow conditions, and reflects poor defensive programming practices that were common in software development prior to modern security standards. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly concerning for multiplayer gaming environments where network connectivity is essential.
The operational impact of this vulnerability extends beyond simple denial of service, as it can disrupt gaming sessions and potentially provide attackers with opportunities to degrade service availability for legitimate users. In multiplayer gaming contexts, such vulnerabilities can be exploited to create persistent disruptions that affect gameplay quality and user experience. The vulnerability affects the core network functionality of the Liero Xtreme client, meaning that any attempt to establish network connections through the affected software will be susceptible to this attack vector. This creates a cascading effect where legitimate players may be unable to access online gaming features, while attackers can repeatedly cause service interruptions without requiring elevated privileges or complex exploitation techniques.
Mitigation strategies for this vulnerability should focus on immediate software updates and input validation improvements. The most effective solution involves updating to a patched version of Liero Xtreme that implements proper argument length checking and buffer management. Organizations and individuals should implement network-level filtering to monitor and restrict unusual argument patterns that might indicate exploitation attempts. The vulnerability also highlights the importance of input validation as outlined in the OWASP Top Ten security principles and aligns with ATT&CK technique T1499.004 for network denial of service attacks. Security monitoring should include detection of anomalous command sequences and implementation of rate limiting to prevent rapid exploitation attempts. Additionally, defensive coding practices should be enforced through code reviews and static analysis tools to identify similar buffer overflow vulnerabilities in legacy applications.