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AUSCERT Security Bulletin
ASB-2012.0086.2
F5 SSH Configuration Vulnerability
22 June 2012
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AusCERT Security Bulletin Summary
---------------------------------
Product: VIPRION
BIG-IP
Enterprise Manager
Operating System: Network Appliance
Impact/Access: Root Compromise -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2012-1493
Member content until: Saturday, July 14 2012
Revision History: June 22 2012: Corrected mitigation details
June 14 2012: Initial Release
OVERVIEW
F5 has reported an SSH configuration vulnerability in some of its
products. The vulnerability may allow a remote user to gain privileged
access to affected systems using SSH.
This vulnerability was reported to F5 by Florent Daigniere of Matta
Consulting. [1]
IMPACT
On affected products, an unauthenticated user may gain root access
to the device.
F5 platforms affected by this issue include those from VIPRION,
BIG-IP and Enterprise Manager range of products. Full details of
affected and non-affected products are available from F5. [2]
MITIGATION
Users should either upgrade to a version that is not vulnerable, or for
those not able to upgrade, F5 has provided options for SSH
reconfiguration and mitigation by restricting access to the affected
(SSH) service on the device. Complete information for addressing
this vulnerability is available from F5. [2]
REFERENCES
[1] F5 BIG-IP remote root authentication bypass Vulnerability
https://www.trustmatta.com/advisories/MATTA-2012-002.txt
[2] SOL13600: SSH vulnerability CVE-2012-1493
http://support.f5.com/kb/en-us/solutions/public/13000/600/sol13600.html
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.
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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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