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                         AUSCERT Security Bulletin

                               ASB-2009.1076
        Firmware released to fix a Denial of service vulnerability
                        in Xerox WorkCentre devices
                             8 September 2009

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Xerox WorkCentre 7232
                      Xerox WorkCentre 7242
                      Xerox WorkCentre 7328
                      Xerox WorkCentre 7335
                      Xerox WorkCentre 7345
                      Xerox WorkCentre 7346
                      Xerox WorkCentre 7425
                      Xerox WorkCentre 7428
                      Xerox WorkCentre 7435
Operating System:     Network Appliance
Impact/Access:        Denial of Service -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
Member content until: Thursday, October  8 2009

OVERVIEW

        Xerox has released a security bulletin detailing a Denial of Service
        vulnerability in the LPD protocol handling on multiple WorkCentre
        devices.


IMPACT

        The vendor supplied the following details:
        
        "An LPD protocol handling vulnerability exists in the firmware for
        the products listed below. If exploited, this vulnerability could 
        cause a denial of service by crashing the device, although power
        cycling the device will recover from this attack. Customer and user
        passwords are not exposed." [1]


MITIGATION

        The vendor has supplied updated firmware for the affected WorkCentre
        devices. Links to the appropriate updates for each model can be found
        in the Xerox security bulletin. [1]


REFERENCES

        [1] Xerox Security Bulletin XRX09-004 (PDF)
            http://www.xerox.com/downloads/usa/en/c/cert_XRX09-004v1.0.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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