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Порт 27015 (Source Engine)
Узнайте о порте 27015 (Source Engine) - угрозы безопасности, уязвимости и применение. Найдите устройства с открытым портом 27015.
Краткая информация
Номер порта
27015
Протокол
UDP
Сервис
Source Engine
Имя IANA
Source Engine
Описание сервиса
UDP port 27015 is the default port used by the Source Engine, a 3D game engine developed by Valve Corporation. It's primarily used for game servers running titles like Counter-Strike: Global Offensive (CS:GO), Team Fortress 2, Garry's Mod, and Left 4 Dead. The port facilitates communication between the game server and the client applications. This communication includes sending game state information, player positions, and responding to client requests. The server constantly broadcasts its presence and game information, allowing clients to discover and connect to the server. The Source Engine relies heavily on UDP due to its low overhead and speed, prioritizing real-time data transmission over guaranteed delivery, which is crucial for minimizing latency in fast-paced online games. The port is typically used for in-game communication, server queries, and player authentication.
## Firewall Recommendations
If you are running a Source Engine game server, you'll need to allow inbound UDP traffic on port 27015. However, limiting access to specific IP addresses or ranges of IP addresses known to be used by legitimate players can help mitigate the risk of DDoS attacks. Regularly update your game server software to the latest version to patch any known security vulnerabilities. Implement server-side security measures such as RCON password protection and anti-cheat systems. Consider using a firewall with advanced features like rate limiting and traffic shaping to protect against volumetric attacks. If you are not running a Source Engine game server, blocking inbound and outbound UDP traffic on port 27015 is a good security practice.
## Firewall Recommendations
If you are running a Source Engine game server, you'll need to allow inbound UDP traffic on port 27015. However, limiting access to specific IP addresses or ranges of IP addresses known to be used by legitimate players can help mitigate the risk of DDoS attacks. Regularly update your game server software to the latest version to patch any known security vulnerabilities. Implement server-side security measures such as RCON password protection and anti-cheat systems. Consider using a firewall with advanced features like rate limiting and traffic shaping to protect against volumetric attacks. If you are not running a Source Engine game server, blocking inbound and outbound UDP traffic on port 27015 is a good security practice.
Информация о безопасности
Because port 27015 is widely used by popular game servers, it becomes a potential target for denial-of-service (DoS) and distributed denial-of-service (DDoS) attacks. Attackers might flood the port with malicious packets, overwhelming the server and rendering it unresponsive to legitimate players. Furthermore, vulnerabilities within the Source Engine itself can be exploited through this port. While Valve actively patches known exploits, the large codebase and constant evolution of the engine mean that new vulnerabilities can emerge. Exploits could potentially lead to remote code execution (RCE), allowing attackers to gain control of the server and potentially the underlying system. Server misconfigurations or outdated server software can also increase the attack surface, making the server more susceptible to exploitation. The protocol's reliance on UDP, while beneficial for speed, lacks inherent connection state tracking and can be more easily spoofed, facilitating certain types of attacks.
Известные уязвимости
| CVE | Название | Критичность | Описание |
|---|---|---|---|
| CVE-2007-5619 | Source Engine Game Server Remote Denial of Service | High | The Source Engine, as used in Half-Life 2 and other games, allows remote attackers to cause a denial of service (server crash) via a crafted UDP packet. |
| CVE-2010-2775 | Multiple Valve Source Engine Games Buffer Overflow | Critical | Multiple Valve Source Engine games, including Counter-Strike: Source, Team Fortress 2, Day of Defeat: Source, and Half-Life 2: Deathmatch, have a buffer overflow vulnerability that can be exploited via a long string to UDP port 27015, potentially leading to arbitrary code execution. |
Распространённое ПО
- Counter-Strike: Global Offensive (CS:GO) Server
- Team Fortress 2 Server
- Garry's Mod Server
- Left 4 Dead Server
- Left 4 Dead 2 Server
- Counter-Strike: Source Server
- Day of Defeat: Source Server
- Half-Life 2: Deathmatch Server
- Source Dedicated Server (srcds)
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