Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2005.0187 -- Arkeia Network Backup 5.3.5 Fixes Buffer
Overflow Vulnerability
24 February 2005
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AusCERT Security Bulletin Summary
---------------------------------
Product: Arkeia Network Backup 5.3.4 and prior
Publisher: Arkeia Corp
Operating System: UNIX variants
Linux variants
Windows
Mac OS X
Novell NetWare
Impact: Root Compromise
Administrator Compromise
Execute Arbitrary Code/Commands
Modify Arbitrary Files
Access: Remote/Unauthenticated
CVE Names: CAN-2005-0491 CAN-2005-0496
Comment: Two separate Arkeia security issues are described at the following URL:
http://metasploit.com/research/arkeia_agent/
The newly released version 5.3.5 fixes the buffer overflow issue.
To resolve the second issue (weak authentication of both server and
clients) AusCERT recommends the following mitigation steps:
1. Apply the steps in Appendix B of the Arkeia manual to restrict
access to specific IP addresses.
2. Add strong authentication by using either SSH tunnelling or stunnel.
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Release of Arkeia Network Backup 5.3.5 fixes security issue
After carefully examining issues recently discussed in public technical forums,
Arkeia Corp. has immediately released a new version to block any potential
invasion of Arkeia protected networks.
ANB 5.3.5 fixes a buffer overflow bug that could allow a remote attacker to
remotely execute arbitrary code, and thereby get root access to the machine.
The fix is also applicable to previous versions of Arkeia (5.1, 5.2,
Arkeia Light). The appropriate packages can be found on the Arkeia websites:
* http://www.arkeia.com/donwload/anb/ (Version 5.3.5)
* http://www.arkeia.com/donwload/52/ (Version 5.2.28)
* http://www.arkeia.com/donwload/51/ (Version 5.1.21)
For Arkeia light: http://www.arkeia.org/download/light/
If you are using Arkeia in an untrusted environment such as a publicly
accessible Web server or corporate mail gateway, it is strongly advised to
upgrade to this version. The bug is in the arkeiad daemon process, making it
necessary to upgrade all the sensitive client machines.
Arkeia users should also remember to take into account Arkeia security
recommendations in the Arkeia User Manual "Appendix B: System Security."
We urge you to read again the sections describing how to secure Arkeia
against system-level intrusion.
Arkeia_User_Manual.pdf
- - -> Arkeia_User_Manual.pdf
or http://www.arkeia.com/manuals.html
To stay up-to-date on all new releases and upgrades of Arkeia Enterprise
Solutions, you can subscribe to Arkeia Announcements at
http://www.arkeia.com/mailinglists/
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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
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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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