[NT] Multiple Vulnerabilities in NGC Active FTP Server (USER, CWD, LS, GET, MKDIR)

From: SecuriTeam (support_at_securiteam.com)
Date: 06/16/03

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Date: 16 Jun 2003 11:47:38 +0200

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      Multiple Vulnerabilities in NGC Active FTP Server (USER, CWD, LS, GET,
    MKDIR)
    ------------------------------------------------------------------------

    SUMMARY

    A simple FTP server for your personal needs. No cryptic settings, just a
    plain vanilla FTP Server that everyone can use. And it's very lightweight,
    takes almost no memory and system resources. Multiple vulnerabilities have
    been found in the product, these vulnerabilities allow a remote attacker
    to cause the server to crash.

    DETAILS

    Vulnerable systems:
     * NGC Active FTP Server 2.40

    A remote user (unauthenticated) can send a long string of 25001 characters
    or more as an argument to the USER command to cause the target server to
    crash. An authenticated user can send a long string with the CWD, LS, GET,
    MKDIR commands causing the server to crash.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:vulncode@yahoo.com> Ziv
    Kamir.

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