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AA-2008.0088                  AUSCERT Advisory

                             [Win][Appliance]
          Tumbleweed SecureTransport FileTransfer ActiveX Buffer
                          Overflow Vulnerability
                               14 April 2008
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        AusCERT Advisory Summary
        ------------------------

Product:              Tumbleweed SecureTransport Server prior to 4.6.1 
                        Hotfix 20
Operating System:     Windows
                      Network Appliance
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-1724
Member content until: Monday, May 12 2008

Original Bulletin:    http://www.aushack.com/200708-tumbleweed.txt

OVERVIEW:

    A vulnerability exists within the Tumbleweed SecureTransport Server [1] 
    FileTransfer ActiveX Control which may allow execution of arbitrary code.


IMPACT:

    Successful exploitation of this vulnerability may allow execution of 
    arbitrary code with the privileges of the user running the control.

    Proof of concept code has been included in the original advisory [2]. 
    Exploitation of this vulnerability is trivial.


MITIGATION:

    Tumbleweed have reportedly issued a patch for this vulnerability is 
    accessible via the Tumbleweed Global Support Portal [3].


REFERENCES:

    [1] Vulnerability Summary CVE-2008-1724
        http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-1724 

    [2] aushack.com Vulnerability Advisory
        http://www.aushack.com/200708-tumbleweed.txt

    [3] Tumbleweed Global Support
        http://www.tumbleweed.com/support/index.html


AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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