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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.0068
     sol05272632: BIG-IP AOM password sync vulnerability CVE-2015-8611
                              12 January 2016

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           F5 BIG-IP products
Publisher:         F5
Operating System:  Network Appliance
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-8611  

Original Bulletin: 
   https://support.f5.com/kb/en-us/solutions/public/k/05/sol05272632.html

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sol05272632: BIG-IP AOM password sync vulnerability CVE-2015-8611

Security Advisory

Original Publication Date: 01/07/2016

Vulnerability Description

BIG-IP systems on the 2000, 4000, 5000, 7000, and 10000 platforms may fail to
sync passwords to the Always-On-Management (AOM).

Impact

An Always-On Management (AOM) configuration with network access may allow 
access to AOM using a stale or default password.

Note: In the default configuration, AOM network access is disabled. BIG-IP 
systems are only vulnerable when AOM network access is enabled. F5 strongly 
recommends restricting access for AOM networks to trusted hosts only, as part
of the overall securing of access to the BIG-IP system.

Security Issue Status

F5 Product Development has assigned ID 563089 (BIG-IP) 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                      12.0.0                             12.0.0 HF1 11.0.0 - 11.6.0 10.1.0 - 10.2.4  Critical        Always-On Management (AOM)
BIG-IP AAM                      12.0.0                             12.0.0 HF1 11.4.0 - 11.6.0                  Critical        Always-On Management (AOM)
BIG-IP AFM                      12.0.0                             12.0.0 HF1 11.3.0 - 11.6.0                  Critical        Always-On Management (AOM)
BIG-IP Analytics                12.0.0                             12.0.0 HF1 11.0.0 - 11.6.0                  Critical        Always-On Management (AOM)
BIG-IP APM                      12.0.0                             12.0.0 HF1 11.0.0 - 11.6.0 10.1.0 - 10.2.4  Critical        Always-On Management (AOM)
BIG-IP ASM                      12.0.0                             12.0.0 HF1 11.0.0 - 11.6.0 10.1.0 - 10.2.4  Critical        Always-On Management (AOM)
BIG-IP DNS                      12.0.0                             12.0.0 HF1                                  Critical        Always-On Management (AOM)
BIG-IP Edge Gateway             None                               11.0.0 - 11.3.0 10.1.0 - 10.2.4             Not vulnerable  None
BIG-IP GTM                      None                               11.0.0 - 11.6.0 10.1.0 - 10.2.4             Not vulnerable  None
BIG-IP Link Controller          12.0.0                             12.0.0 HF1 11.0.0 - 11.6.0 10.1.0 - 10.2.4  Critical        Always-On Management (AOM)
BIG-IP PEM                      12.0.0                             12.0.0 HF1 11.3.0 - 11.6.0                  Critical        Always-On Management (AOM)
BIG-IP PSM                      None                               11.0.0 - 11.4.1 10.1.0 - 10.2.4             Not vulnerable  None
BIG-IP WebAccelerator           None                               11.0.0 - 11.3.0 10.1.0 - 10.2.4             Not vulnerable  None
BIG-IP WOM                      None                               11.0.0 - 11.3.0 10.1.0 - 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                               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
BIG-IQ Centralized Management   None                               None                                        Not vulnerable  None
BIG-IQ Cloud and Orchestration  None                               1.0.0                                       Not vulnerable  None
LineRate                        None                               2.5.0 - 2.6.1                               Not vulnerable  None
F5 WebSafe                      None                               1.0.0                                       Not vulnerable  None
Traffix SDC                     None                               4.0.0 - 4.4.0 3.3.2 - 3.5.1                 Not vulnerable  None



Vulnerability Recommended Actions

If you are running a version listed in the Versions known to be vulnerable 
column, you can eliminate this vulnerability by upgrading to a version listed
in the Versions known to be not vulnerable column. If the table lists only an
older version than what you are currently running, or does not list a 
non-vulnerable version, 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 perform one or both of the following 
procedures:

Manually synchronizing the AOM password

Impact of action: The following mitigation suggestions should not have a 
negative impact on your system, but may require additional administration 
steps in the event of a Traffic Management Operating System (TMOS) password 
change.

If you have deployed a new BIG-IP 12.0.0 system on an affected platform, 
changing the root password in TMOS fails to synchronize with AOM and leaves 
the default password. To change passwords, you can first change the password 
in TMOS, and then synchronize the TMOS and AOM passwords by logging in to the
advanced shell (bash) as the root user and running the /usr/bin/syncpwd 
command.

If you have upgraded to BIG-IP 12.0.0 from an existing TMOS installation, the
root password that was set in the previous installation will persist in AOM. 
Upon upgrading to BIG-IP 12.0.0, password synchronization fails and AOM still
uses the password synchronized from the previous system installation. To 
change passwords, you can first change the password in TMOS, and then 
synchronize the TMOS and AOM passwords by logging in to bash as the root user
and running the /usr/bin/syncpwd command.

Note: Any subsequent change to the root password must be manually synchronized
to AOM using the previous instructions.

Disabling network access to AOM

Impact of action: The following mitigation suggestion should not have a 
negative impact on your system, but you will be unable to access AOM via the 
network.

For instructions and more information about disabling network access to AOM, 
refer to SOL14595: Configuring AOM network access (2000, 4000, 5000, 7000, and
10000 series platforms).

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

SOL167: Downloading software and firmware from F5

SOL13123: Managing BIG-IP product hotfixes (11.x - 12.x)

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