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AUSCERT External Security Bulletin Redistribution
ESB-2005.0187 -- Arkeia Network Backup 5.3.5 Fixes Buffer
24 February 2005
AusCERT Security Bulletin Summary
Product: Arkeia Network Backup 5.3.4 and prior
Publisher: Arkeia Corp
Operating System: UNIX variants
Mac OS X
Impact: Root Compromise
Execute Arbitrary Code/Commands
Modify Arbitrary Files
CVE Names: CAN-2005-0491 CAN-2005-0496
Comment: Two separate Arkeia security issues are described at the following URL:
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
To stay up-to-date on all new releases and upgrades of Arkeia Enterprise
Solutions, you can subscribe to Arkeia Announcements at
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This security bulletin is provided as a service to AusCERT's members. As
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Previous advisories and external security bulletins can be retrieved from:
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:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
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AusCERT personnel answer during Queensland business hours
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On call after hours for member emergencies only.
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