The Quake II Server contains an information leakage vulnerability that allows remote attackers to gain control of the game server process.
The Quake II Server responds to console commands from Quake II clients to perform a variety of game and server management functions. Both the server and client store configuration and status information in console variables (cvars) that are accessed using a syntax of "$name", where "name" is the name of the console variable to be expanded.
In normal operation, users interact with a client console application to issue commands to the server. If the user types a command containing the string "$rcon_password", the client console will include the value of a local variable named "rcon_password" in the command string.
Attackers can obtain authentication information from affected servers, resulting in compromise of the game server process.
Apply a patch from your vendor
The CERT/CC thanks Richard Stanway for his assistance in researching this vulnerability.
This document was written by Jeffrey P. Lanza.
|Date First Published:||2002-05-29|
|Date Last Updated:||2002-05-29 19:24 UTC|