[NEWS] Half Life Dedicated Server Information Leak and DoS

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To: list@securiteam.com
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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