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AA-2009.0100                  AUSCERT Advisory

                                [Appliance]
            Nortel Application Gateway: Access Privileged Data
                               22 April 2009
- ---------------------------------------------------------------------------

        AusCERT Advisory Summary
        ------------------------

Product:              Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.1.0.436
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.1.1.437
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.1.404
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.1.409
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.2.545
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.2.551
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i 6.3
                      Enterprise VoIP-IP Products-Application Gateway 
                        2000i
Operating System:     Network Appliance
Impact:               Access Privileged Data
Access:               Remote/Unauthenticated
Member content until: Wednesday, May 20 2009

Comment: The referenced website requires a Nortel Support account to access.

OVERVIEW:

      Nortel has released a security bulletin identifying a vulnerability in
      the Nortel Application Gateway, which exposes sensitive data to
      unauthorised users.


DETAILS:

      'The "Nortel Administration Tool powered by Citrix" can be accessed 
      under the URL "https://<server>:3001/". Thesubframe 
      "https://<server>:3001/adminDownloads.htm" does not show any content 
      in the browser view. However the HTML-source of this frame may be 
      used to obtain sensitive administrative user account information.' [1]


MITIGATION:

      Nortel supports upgrading directly to Application Gateway Release 
      6.3.1 from releases 6.1.0.409, 6.1.1.437, and 6.2.551.
      Please refer to the Nortel advisory for fixes to your specific 
      product. [1]


REFERENCES:

      [1] AG2000 Potential Password Disclosure Vulnerability
          http://www116.nortel.com/pub/repository/CLARIFY/DOCUMENT/2009/15/024619-01.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

===========================================================================
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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