[NT] Multiple Vulnerabilities in NetServe (Directory Traversal, Password Disclosure)

From: SecuriTeam (support_at_securiteam.com)
Date: 11/18/03

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Date: 18 Nov 2003 11:56:59 +0200

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      Multiple Vulnerabilities in NetServe (Directory Traversal, Password
    Disclosure)
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.starlots.com/netx/index.html> NetServe is "a super compact
    Web Server and File Sharing application for Windows NT, 95, 98, 2000, and
    XP". A vulnerability in the product allows remote attackers to view
    arbitrary files, thus expose the server's files to remote reading, and the
    NetServe's administrator password to anyone that desires to have it.

    DETAILS

    Vulnerable systems:
     * NetServe version 1.0.7

    Directory Traversal:
    The NetServe server does not properly filter out " /../../ ", this allows
    an attacker to view files that reside below the bounding HTML root
    directory.

    Example:
    You can view either directories http://[victim]/../test/, or files
    http://[victim]/../test/test.txt.

    Configuration Disclosure:
    By default in NetServe's configuration files resides a single director
    below the wwwroot's. This means that using the above vulnerability a
    remote attacker can download the remote server's configuration by
    requesting a special URL.

    Example:
    By requesting http://[victim]/../config.dat, it is possible to view the
    server's configuration file.

    Access to the Administrative Password:
    The config.dat file contains a line like: Users username|password|...

    This means that anyone can after obtaining this password, remotely
    configure the web server to do whatever he wants.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:nimber@mail.ru> nimber.

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