OSEC

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From: Tamer Sahin (tssecurityoffice.net)
Date: Sat Jan 05 2002 - 12:41:44 CST

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    Savant Webserver Buffer Overflow Vulnerability

    Type:
    DoS, crashes Daemon

    Release Date:
    January 5, 2002

    Product / Vendor:
    Savant is a freeware open source web server that runs on Windows 95,
    98, ME, NT, and 2000, turning any desktop computer into a powerful
    web server. Designed to be fast, secure, and efficient, Savant is
    the choice of thousands of professional and amateur webmasters
    worldwide.

    http://savant.sourceforge.net

    Summary:
    Server crashes after sending very long parameter a few times.

    http://host/cgi-bin/cgi-test.pl.......................................
    ......................................................................
    ......................................................................
    ...........................................................

    The instruction at "0x002e2e3d" referenced memory at "0xac40303c".
    The memory could not be "written".

    Log:
    Error File: <error.txt>
    - -
    - -
    - -
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: TCP buffer overflow
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process
    Error: Failure to create CGI Process

    Tested:
    Windows 2000 / Savant 3.0

    Vulnerable:
    Savant 3.0 (And may be other)

    Disclaimer:
    http://www.securityoffice.net is not responsible for the misuse or
    illegal use of any of the information and/or the software listed on
    this security advisory.

    Author:
    Tamer Sahin
    tssecurityoffice.net
    http://www.securityoffice.net

    Tamer Sahin
    http://www.securityoffice.net
    PGP Key ID: 0x2B5EDCB0 Fingerprint:
    B96A 5DFC E0D9 D615 8D28 7A1B BB8B A453 2B5E DCB0

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