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AA-2009.0073                  AUSCERT Advisory

                                [Appliance]
          3Com Switch 5500 / 5500G Logbuffer Password Disclosure
                               31 March 2009
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        AusCERT Advisory Summary
        ------------------------

Product:              3Com Switch 5500
                      3Com Switch 5500G
Operating System:     Network Appliance
Impact:               Access Privileged Data
Access:               Existing Account
Member content until: Tuesday, April 28 2009

OVERVIEW:
       
        A weakness has been found in 3Com switches (5500/5500G) where the
        password can be extracted in plain text from the logbuffer.


IMPACT:
      
        A local user on the switch may be able to extract the password from
        the switches logbuffer.

        First found in firmware version V3.03.01p05 and patched in V3.03.02
        as described by vendor:
    
        "LSOD08193 The password can be found in logbuffer, this is a hidden
        danger." [1,2]
 

MITIGATION:

        Vendor has provided an updated firmware version 3.03.02 which
        resolves this issue.

        The update is available for download on the vendor's website:
        http://www.3com.com/products/en_US/downloadsindex.jsp


REFERENCES:

        [1] 3COM - Switch 5500G V3.03.02 Release Notes
            http://support.3com.com/documents/switches/5500G/3COM_OS_Switch_5500G_V3_03_02_Release_Notes.pdf

        [2] 3COM - Switch 5500 V3.03.02e Release Notes
            http://support.3com.com/documents/switches/5500/3COM_OS_Switch_5500_V3.03.02e_Release_Notes.pdf

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

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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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