-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2007.0039 -- AUSCERT ALERT
                             [Win][UNIX/Linux]
         Unpatched vulnerability in CA BrightStor ARCserve Backup
                               2 April 2007

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

        AusCERT Alert Summary
        ---------------------

Product:              CA BrightStor ARCserve Backup (Mediasvr.exe)
Publisher:            CA
Operating System:     AIX
                      Linux variants
                      HP-UX
                      Solaris
                      Windows
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated

- --------------------------BEGIN INCLUDED TEXT--------------------


CA is aware that functional exploit code was publicized on 
March 30, 2007 for a CA BrightStor ARCserve Backup Mediasvr.exe 
vulnerability. 

We have verified that a high risk vulnerability does exist and we 
are now working on a patch to address the issue. 

CA recommends that BrightStor ARCserve Backup users implement the 
following temporary workaround to mitigate the vulnerability: 

1) Rename the "mediasvr.exe" file to a non-functional file name, 
   such as "mediasvc.exe.disable".

2) Then restart the CA BrightStor Tape Engine service.

This will disable the command line functionality in the product 
(i.e. command line utilities such as ca_backup, ca_restore, 
ca_merge, ca_qmgr, ca_scan, etc will not work).

After we have completed our analysis of the issue, we will post 
an update and patches on the CA SupportConnect website. If 
additional information is required, please contact CA Technical 
Support at http://supportconnect.ca.com.

If you discover a vulnerability in CA products, please report 
your findings to vuln at ca dot com, or utilize our "Submit a 
Vulnerability" form at 
http://www3.ca.com/securityadvisor/vulninfo/submit.aspx.


Regards,
Ken Williams ; 0xE2941985
Director, CA Vulnerability Research

CA, One CA Plaza, Islandia, NY 11749
	
Contact http://www3.ca.com/contact/
Legal Notice http://www3.ca.com/legal/
Privacy Policy http://www3.ca.com/privacy/
Copyright (c) 2007 CA. All rights reserved.


- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

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.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBRhCOvSh9+71yA2DNAQJmVQP/fyFT+VCTVO3bfJh60o814yDsueYaRFkK
HLtGcAEk0vNHEPPPZkVIA1eMqYzolQ/E3k7iKCe+gXbyzDZxPvkBfjrn9uAegQ3C
ARTdkUs8K//OoPm+Jhs/WxWxWiH70aKxVjIBV97iRTibBEvROxTseYhSqFt6bis2
wr2AqAyodJs=
=nC74
-----END PGP SIGNATURE-----