[NEWS] Half Life Dedicated Server Information Leak and DoS

From: SecuriTeam (support_at_securiteam.com)
Date: 11/19/03

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Date: 19 Nov 2003 19:09:25 +0200

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      Half Life Dedicated Server Information Leak and DoS
    ------------------------------------------------------------------------

    SUMMARY

    In Half Life's server configuration if "allowdownload = 1" has been set,
    it's possible to download any file from the directory of the current game
    or from the 'valve' directory (NOTE: allowdownload is required if you want
    to allow clients to retrieve new maps from server).

    DETAILS

    Vulnerable systems:
     * Half Life Dedicated Server version 47 1.1

    Impact:
    It's possible to download configuration files (like server.cfg,
    configuration files for different mods, etc) with sensitive information,
    including passwords. Additionally, downloading large file (for example
    map) causes server to crash.

    Example:
      cmd dlfile server.cfg
      cmd dlfile addons/amx/users.ini
      cmd dlfile addons/amx/mysql.cfg
      cmd dlfile maps/de_torn.bsp

    ADDITIONAL INFORMATION

    The information has been provided by SYZo[SND].

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