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AUSCERT Security Bulletin
ASB-2009.1150
Multiple f5 Networks products vulnerable to SSL renegotion vulnerability
2 December 2009
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AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP
3-DNS
FirePass
Enterprise Manager
WANJet
ARX
Operating System: Network Appliance
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2009-3555
Member content until: Friday, January 1 2010
Reference: ASB-2009.1125.2
OVERVIEW
f5 have released an advisory affecting multiple products including
BIG-IP.
IMPACT
The vendor has provided the following information regarding these
HotFixes and their associated vulnerabilities:
SSL Renegotiation vulnerability - CVE-2009-3555
"A Man in the Middle attack allows an attacker to inject an arbitrary
amount of chosen plaintext into the application protocol stream data
during an SSL session renegotiation. This may provide an attacker the
ability to perform arbitrary actions on affected websites with user's
credentials. This vulnerability does not allow one to decrypt the
intercepted network communication." [1]
MITIGATION
The vendor has announced that BIG-IP version 9.4.8 HF1 resolves
this issue. [2]
The vendor has also made the following statement regarding hotfixes
for this issue:
"An engineering hotfix has been issued for FirePass versions 6.1, 6.0.3,
6.0.2, 5.5.2, 5.5.1, and 5.5. Customers affected by this issue should
contact F5 Networks Technical Support, referencing this Solution number
and the associated CR number (CR132177), to request the hotfix."
An engineering hotfix has also been issued for Enterprise Manager version
1.8. Customers affected by this issue should contact F5 Networks
Technical Support, referencing this Solution number and the associated
CR number (CR132166), to request the hotfix." [1]
REFERENCES
[1] SOL10737: SSL Renegotiation vulnerability - CVE-2009-3555 /
VU#120541
https://support.f5.com/kb/en-us/solutions/public/10000/700/sol10737.html
[2] SOL10796: Overview of BIG-IP version 9.4.8 HF1
https://support.f5.com/kb/en-us/solutions/public/10000/700/sol10796.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.
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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