AusCERT - AU-2009.0021 -- AusCERT Update - [Win] - Update to recent IIS vulnerability

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AU-2009.0021 -- AusCERT Update - [Win] - Update to recent IIS vulnerability

Date: 19 May 2009
References: AL-2009.0041

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AusCERT Update AU-2009.0021 - [Win]
Update to recent IIS vulnerability
19 May 2009

        AusCERT Update Summary
        ----------------------

Product:              Microsoft IIS
Operating System:     Windows
Impact:               Execute Arbitrary Code/Commands
                      Access Privileged Data
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-1676
Member content until: Tuesday, June 16 2009

Ref:                  AL-2009.0041

Original Bulletin:
  http://www.microsoft.com/technet/security/advisory/971492.mspx

Revision History:     May 19 2009: CVE information added
                      May 19 2009: Initial Release

Microsoft has released a bulletin regarding the new IIS vulnerabilities. It
is available at:

       http://www.microsoft.com/technet/security/advisory/971492.mspx

While a fix is not yet available, the vulnerability does not bypass
underlying file system access lists and so the issue can be further
mitigated by applying strict access controls for the anonymous web user.
More information on this is available at the above URL, and at the following
Microsoft knowledge base articles:

        http://support.microsoft.com/?id=271071
        http://support.microsoft.com/kb/812614/

We will post further information as it becomes available.

Regards,

The AusCERT Team

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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