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AUSCERT External Security Bulletin Redistribution
ESB-2016.1448
sol00265182: Custom monitor privilege escalation
vulnerability CVE-2016-5020
9 June 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-5020
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/00/sol00265182.html
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sol00265182: Custom monitor privilege escalation vulnerability CVE-2016-5020
Security Advisory
Original Publication Date: 06/08/2016
Vulnerability Description
A user role assigned the Resource Administrator is capable of a privilege
escalation which allows through the use of malicious external EAV monitor
scripts to modify user accounts. (CVE-2016-5020)
Impact
An attacker may be able to use a malicious external Extended Application
Verification (EAV) monitor script to modify BIG-IP user accounts.
Security Issue Status
F5 Product Development has assigned ID 520924 (BIG-IP) to this 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 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
11.2.1
10.2.1 - 10.2.4
BIG-IP AAM 12.0.0 - 12.1.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
BIG-IP AFM 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
BIG-IP Analytics 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
11.2.1
BIG-IP APM 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
11.2.1
10.2.1 - 10.2.4
BIG-IP ASM 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
11.2.1
10.2.1 - 10.2.4
BIG-IP DNS 12.0.0 12.1.0 Medium EAV external monitors
12.0.0 HF3
BIG-IP Edge Gateway 11.2.1 None Medium EAV external monitors
10.2.1 - 10.2.4
BIG-IP GTM 11.4.0 - 11.6.1 None Medium EAV external monitors
11.2.1
10.2.1 - 10.2.4
BIG-IP Link Controller 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
11.2.1
10.2.1 - 10.2.4
BIG-IP PEM 12.0.0 12.1.0 Medium EAV external monitors
11.4.0 - 11.6.1 12.0.0 HF3
BIG-IP PSM 11.4.0 - 11.4.1 None Medium EAV external monitors
10.2.1 - 10.2.4
BIG-IP WebAccelerator 11.2.1 None Medium EAV external monitors
10.2.1 - 10.2.4
BIG-IP WOM 11.2.1 None Medium EAV external monitors
10.2.1 - 10.2.4
ARX None 6.2.0 - 6.4.0 Not vulnerable None
Enterprise Manager None 3.1.1 Not vulnerable None
FirePass None 7.0.0 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 4.6.0 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 MobileSafe None 1.0.0 Not vulnerable None
F5 WebSafe None 1.0.0 Not vulnerable None
Traffix SDC None 5.0.0 Not vulnerable None
4.0.0 - 4.4.0
3.3.2 - 3.5.1
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 assign the Resource Administrator role
to trusted users only.
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)
SOL10025: Managing BIG-IP product hotfixes (10.x)
SOL9502: BIG-IP hotfix matrix
SOL12173: Overview of BIG-IP administrative access controls
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