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AUSCERT Security Bulletin
ASB-2011.0120
Novell Access Manager and CVE-2011-3389: "Beast Attack Vulnerability"
19 December 2011
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AusCERT Security Bulletin Summary
---------------------------------
Product: Novell Access Manager 3.1
Operating System: Linux variants
Impact/Access: Access Privileged Data -- Remote with User Interaction
Unauthorised Access -- Remote with User Interaction
Resolution: Mitigation
CVE Names: CVE-2011-3389
Member content until: Wednesday, January 18 2012
Reference: ASB-2011.0092
ASB-2011.0071.2
ESB-2011.1041
ESB-2011.0979
OVERVIEW
Novell has published a document detailing possible defenses against the
BEAST vulnerability. [1]
IMPACT
The BEAST vulnerability could allow man-in-the-middle attackers
to obtain session cookies from HTTPS requests. [2]
MITIGATION
In the Linux Access Gateway appliance (LAG) the only mitigation is to ensure that
clients are using a patched browser. [1]
In the Linux Access Gateway service (MAG), the proxy services
configuration files can be edited to specify the appropriate SSL
directives. Novell has reported this mitigation to its engineers. [1]
REFERENCES
[1] Novell Access Manager and CVE-2011-3389: "Beast Attack
Vulnerability"
http://www.novell.com/support/viewContent.do?externalId=7009901
[2] CVE-2011-3389
http://support.novell.com/security/cve/CVE-2011-3389.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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