Half-Life Server multiple player denial of service
|halflife-multiple-player-dos (9412)||Medium Risk|
Valve Software's Half-Life Server is vulnerable to a denial of service attack. Normally, a single cd key allows for a maximum of four players from the same server. However, a remote attacker could send a connection request with a specially-crafted %cd_key parameter, which would allow the attacker to create new players above the four player limit until the maximum amount of players allowed for that game server has been reached. Once this occurs, legitimate users would be unable to connect to the game server.
Denial of Service
No remedy available as of April 1, 2014.
- BugTraq Mailing List, Mon Jun 24 2002 - 14:47:34 CDT: Re: Half-life fake players bug (update).
- BugTraq Mailing List, Thu Jun 20 2002 - 14:00:03 CDT: Half-life fake players bug.
- BID-5076: Half-Life Server New Player Flood Denial Of Service Vulnerability
- CVE-2002-0964: Half-Life Server 220.127.116.11 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via multiple responses to the initial challenge with different cd_key values, which reaches the player limit and prevents other players from connecting until the original responses have timed out.
- OSVDB ID: 5001: Half-Life Server cd_key DoS
- Sierra Half-Life Dedicated Server
- Sierra Half-Life Server
Jun 20, 2002
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this