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AA-2006.0090                  AUSCERT Advisory

                                   [OSX]
  Public Exploit Code Available for AirPort Wireless Driver Vulnerability
                              6 November 2006
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        AusCERT Advisory Summary
        ------------------------

Operating System:     Mac OS X
Impact:               Denial of Service
Access:               Remote/Unauthenticated
Member content until: Monday, December 04 2006

OVERVIEW:

        Public exploit code is available for a recently announced vulnerability 
        [1][2] in the driver for Orinoco based AirPort cards.

        No patch is currently available, and Apple have not released 
        details of affected versions.
    
    
IMPACT: 

        Successful exploitation of this vulnerability is reported to result 
        in a denial of service condition on the vulnerable host. Given the 
        nature of the described vulnerability [1][2], arbitrary code execution 
        may also be possible.

        Exploit code has been released as a module for the MetaSploit Framework 
        [4].


MITIGATION:

        Users are advised to disable the AirPort wireless card when not in 
        use until a patch becomes available for this issue.


REFERENCES:

        [1] Exploit Code Posted for Unpatched Vulnerability in Apple AirPort 
            Driver - US-Cert
            http://www.us-cert.gov/current/current_activity.html#aparptorn

        [2] Month of Kernel Bugs
            http://projects.info-pull.com/mokb/MOKB-01-11-2006.html

        [3] Disabling the AirPort Card
            http://docs.info.apple.com/article.html?artnum=166645

        [4] Metasploit Framework
            http://www.metasploit.com


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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