[NEWS] HAURI Anti-Virus Directory Traversal

From: SecuriTeam (support_at_securiteam.com)
Date: 08/25/05

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Date: 25 Aug 2005 12:00:43 +0200

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      HAURI Anti-Virus Directory Traversal
    ------------------------------------------------------------------------

    SUMMARY

    A directory traversal vulnerability in various HAURI anti-virus products,
    can be exploited by malicious people to write files to arbitrary
    directories.

    DETAILS

    Vulnerable Systems:
     * ViRobot Expert version 4.0
     * ViRobot Advanced Server
     * ViRobot Linux Server version 2.0
     * HAURI LiveCall

    The vulnerability is caused due to unsafe extraction of compressed
    archives (e.g. ACE, ARJ, CAB, LZH, RAR, TAR and ZIP) into a temporary
    directory before scanning. This can be exploited to write files into
    arbitrary directories when scanning a malicious archive containing files
    that have "/../" or "../../" directory sequences in their filenames.

    Successful exploitation allows writing of files to arbitrary directories,
    which can potentially lead to code execution (e.g. by overwriting certain
    startup files), but requires that compressed file scanning is enabled.

    Vendor Status:
    The vendor has released a patch for ViRobot Linux Server 2.0:
    <http://www.globalhauri.com/html/download/down_unixpatch.html>
    http://www.globalhauri.com/html/download/down_unixpatch.html

    The updated version of ViRobot Expert 4.0, ViRobot Advanced Server and
    LiveCall are available via online update but they are still vulnerable
    when scanning certain archive types.

    Disclosure Timeline:
    30/06/2005 - Initial vendor notification.
    12/07/2005 - Second vendor notification.
    14/07/2005 - Vendor response.
    08/08/2005 - Received notification that VR Expert and VR Advanced Server
    has been fixed via online update.
    09/08/2005 - Received notification that LiveCall has been fixed via online
    update.
    11/08/2005 - Notified vendor that certain archive types are still
    affected.
    17/08/2005 - Vendor released patch for VR Linux Server and disclosed
    vulnerability information.
    19/08/2005 - Public disclosure.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:vuln@secunia.com> Secunia
    Research.
    The original article can be found at:
    <http://secunia.com/secunia_research/2005-24/advisory/>
    http://secunia.com/secunia_research/2005-24/advisory/

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