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AUSCERT External Security Bulletin Redistribution
ESB-2015.1185
SOL16090: BIG-IP Automatic Update Check and ASM Automatic Signature Update
man-in-the-middle vulnerability CVE-2014-9326
30 April 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-9326
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/16000/000/sol16090.html
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SOL16090: BIG-IP Automatic Update Check and ASM Automatic Signature Update
man-in-the-middle vulnerability CVE-2014-9326
Security AdvisorySecurity Advisory
Original Publication Date: 04/29/2015
Description
The BIG-IP Phone Home and ASM Call Home automatic signature update
functionality is susceptible to Man-in-the-Middle type attacks due to improper
validation of server SSL certificates. (CVE-2014-9326)
Impact
In the scenario where DNS records for callhome.f5.com are compromised, an
attacker may be able to deliver a malicious payload to the BIG-IP system.
Status
F5 Product Development has assigned ID 494078 (BIG-IP) and ID 496849 (ASM/PEM)
to this vulnerability, and has evaluated the currently supported releases for
potential vulnerability.
To determine if your release is known to be vulnerable, the components or
features that are affected by the vulnerability, and for information about
releases or hotfixes that address the vulnerability, refer to the following
table:
Product Versions known to be vulnerable Versions known to be not vulnerable Severity* Vulnerable component or feature
BIG-IP LTM 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP AAM 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP AFM 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP Analytics 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP APM 11.3.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP ASM 10.0.0 - 11.6.0 11.5.1 HF8
11.5.2 HF1
11.6.0 HF4 Severe BIG-IP automatic update check (phone home) feature
ASM automatic signature update feature
BIG-IP Edge Gateway None 11.0.0 - 11.3.0
10.1.0 - 10.2.4 Not Vulnerable None
BIG-IP GTM 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home)feature
BIG-IP Link Controller 11.5.0 - 11.6.0 11.6.0 HF4
11.5.2
11.5.1 HF8
11.5.0 HF7
11.0.0 - 11.4.1
10.0.0 - 10.2.4 Severe BIG-IP automatic update check (phone home) feature
BIG-IP PEM 11.3.0 - 11.6.0 11.5.1 HF8
11.5.2 HF1
11.6.0 HF4 Severe BIG-IP automatic update check (phone home) feature
PEM automatic update feature
BIG-IP PSM None 11.0.0 - 11.4.1
10.0.0 - 10.2.4 Not Vulnerable None
BIG-IP WebAccelerator None 11.0.0 - 11.3.0
10.0.0 - 10.2.4 Not Vulnerable None
BIG-IP WOM None 11.0.0 - 11.3.0
10.0.0 - 10.2.4 Not Vulnerable None
ARX None 6.0.0 - 6.4.0 Not Vulnerable None
Enterprise Manager None 3.0.0 - 3.1.1
2.1.0 - 2.3.0 Not Vulnerable None
FirePass None 7.0.0
6.0.0 - 6.1.0 Not Vulnerable None
BIG-IQ Cloud None 4.0.0 - 4.5.0 Not Vulnerable None
BIG-IQ Device None 4.2.0 - 4.5.0 Not Vulnerable None
BIG-IQ Security None 4.0.0 - 4.5.0 Not Vulnerable None
BIG-IQ ADC None 4.5.0 Not Vulnerable None
LineRate None 2.4.0 - 2.4.2
2.3.0 - 2.3.3
2.2.0 - 2.2.7
1.6.0 - 1.6.4 Not Vulnerable None
Traffix None 4.0.0 - 4.1.0
3.3.2 - 3.5.1 Not Vulnerable None
Websafe None 1.0.0 Not Vulnerable None
*Note: As of February 17, 2015, AskF5 Security Advisory articles include the
Severity value. Security Advisory articles published before this date do not
list a Severity value.
Recommended Action
If the previous table lists a version in the Versions known to be not
vulnerable column, you can eliminate this vulnerability by upgrading to the
listed version. If the listed version is older than the version you are
currently running, or if the table does not list any version in the column,
then no upgrade candidate currently exists.
F5 responds to vulnerabilities in accordance with the Severity values
published in the previous table. The Severity values and other security
vulnerability parameters are defined in SOL4602: Overview of the F5 security
vulnerability response policy.
To mitigate this vulnerability, you can disable the automatic call home
functionality. To do so, perform one of the following procedures:
Disable the PhoneHome functionality for affected BIG-IP versions
Impact of action: The system will not perform the automatic update (phone
home) check features; you should manually perform these checks.
1. Disable manual updates by following the instructions in SOL15000: Using the
Automatic Update Check feature.
2. Manually update individual BIG-IP components by following the instructions in
the following articles:
Major and minor releases - SOL167: Downloading software and firmware from F5
and SOL13123: Managing BIG-IP product hotfixes (11.x)
Hotfix releases - SOL167: Downloading software and firmware from F5 and
SOL13123: Managing BIG-IP product hotfixes (11.x)
End-User Diagnostics - SOL167: Downloading software and firmware from F5 and
SOL13123: Managing BIG-IP product hotfixes (11.x)
EPSEC/OPSWAT - SOL10942: Installing OPSWAT hotfixes on BIG-IP APM systems
Geolocation - SOL11176: Downloading and installing updates to the IP
geolocation database
Disable the CallHome automatic attack signature update functionality on the
BIG-IP ASM system
Impact of action: The BIG-IP signature database may be out of date if it is
not regularly, manually updated.
For instructions on how to disable automatic signature updates, and implement
a manual update regime, refer to SOL8217: Updating the BIG-IP ASM attack
signatures.
Disable the automatic signature update functionality on the BIG-IP PEM system
1. Log in to the BIG-IP Configuration utility as the admin user.
2. On the Main tab, navigate to Policy Enforcement > Signatures.
3. To disable the Automatic Updates setting, clear the Enabled box.
4. To save your settings, click Update.
Supplemental Information
SOL9970: Subscribing to email notifications regarding F5 products
SOL9957: Creating a custom RSS feed to view new and updated documents
SOL4918: Overview of the F5 critical issue hotfix policy
SOL10025: Managing BIG-IP product hotfixes (10.x)
SOL9502: BIG-IP hotfix matrix
SOL10322: FirePass hotfix matrix
SOL12766: ARX hotfix matrix
SOL3430: Installing FirePass hotfixes
SOL6664: Obtaining and installing OPSWAT hotfixes
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