[NT] Multiple Buffer Overflow Vulnerabilities Found in MERCUR Mail Server

From: SecuriTeam (support_at_securiteam.com)
Date: 06/24/03

  • Next message: SecuriTeam: "[UNIX] Cross Site Scripting Vulnerability Found in TUTOS" 
    To: list@securiteam.com
Date: 24 Jun 2003 12:13:55 +0200

    The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
    - - promotion

    Beyond Security in Canada

    Toronto-based Sunrays Technologies is now Beyond Security's representative in Canada.
    We welcome ISPs, system integrators and IT systems resellers
    to promote the most advanced vulnerability assessment solutions today.

    Contact us at 416-482-0038 or at canadasales@beyondsecurity.com

    - - - - - - - - -

      Multiple Buffer Overflow Vulnerabilities Found in MERCUR Mail Server
    ------------------------------------------------------------------------

    SUMMARY

     <http://atrium-softwareusa.com/EN/mercur_products.html> Mercur Mail
    Server is a fully compliant POP3, SMTP, IMAP4 mail server that offers
    business and individual users a level stability, security, and scalability
    not matched by other mail server products. It supports unlimited domains
    and user accounts. Multiple buffer overflow vulnerabiltiies have been
    found in the product, allowing attackers to cause the server to crash.

    DETAILS

    Vulnerable systems:
     * MERCUR IMAP4-Server version 4.02.09

    Immune systems:
     * MERCUR IMAP4-Server version 4.2.15.0

    Whenever a malicious attacker sends a large of data with any of these
    commands: EXAMINE, DELETE, SUBSCRIBE, RENAME, UNSUBSCRIBE, LIST, LSUB,
    STATUS, LOGIN, CREATE, SELECT, a buffer will overflow, causing the server
    to crash (Sending more than 8000 characters will not cause any effect as
    the service will stop the request from overflow the buffer).

    Vendor response:
    Dear Dennis,
    Our programmers informed us that they have fixed the problem and now they
    are testing it. I will inform you when a fix is available, it should be
    soon. Thank you for pointing out this problem to us.
    Sincerely,
    Alex Ribeiro

    Disclosure timeline:
    10/05/2003 Found the Vulnerability, and made an analysis.
    13/05/2003 Reported to Vendor.
    14/05/2003 Recived information from Vendor
    06/06/2003 Public Disclosure

    ADDITIONAL INFORMATION

    The information has been provided by
    <mailto:NC_Agent@kueppers-familie.de> NC Agent.

    ========================================

    This bulletin is sent to members of the SecuriTeam mailing list.
    To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
    In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com

    ====================
    ====================

    DISCLAIMER:
    The information in this bulletin is provided "AS IS" without warranty of any kind.
    In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

  • Next message: SecuriTeam: "[UNIX] Cross Site Scripting Vulnerability Found in TUTOS"

    Relevant Pages