Operating System:

[Appliance]

Published:

29 September 2014

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1692
              SOL15623: GnuTLS vulnerability - CVE-2009-5138
                             29 September 2014

===========================================================================

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

Product:           F5 BIG-IP products
                   F5 ARX
                   F5 Enterprise Manager
                   F5 FirePass
                   F5 BIG-IQ 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-2009-5138  

Reference:         ESB-2014.0807
                   ESB-2014.0282

Original Bulletin: 
   http://support.f5.com/kb/en-us/solutions/public/15000/600/sol15623.html

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SOL15623: GnuTLS vulnerability - CVE-2009-5138

Security Advisory

Original Publication Date: 09/26/2014

Description

GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not 
enabled, treats version 1 X.509 certificates as intermediate CAs, which allows
remote attackers to bypass intended restrictions by leveraging a X.509 V1 
certificate from a trusted CA to issue new certificates, a different 
vulnerability than CVE-2014-1959. (CVE-2009-5138)

Impact

Attackers may be able to bypass intended restrictions by leveraging an X.509 
V1 certificate from a trusted CA to issue a new certificate.

Status

F5 Product Development has assigned ID 451020, ID 480235, ID 480236, (BIG-IP,
BIG-IQ and Enterprise Manager) and ID 454906 (ARX) 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	Vulnerable component or feature

BIG-IP LTM 	11.0.0 - 11.6.0				None					Wireshark*	
		10.0.0 - 10.2.4

BIG-IP AAM 	11.4.0 - 11.6.0 			None 					Wireshark*

BIG-IP AFM 	11.3.0 - 11.6.0 			None 					Wireshark*

BIG-IP 		11.0.0 - 11.6.0 			None 					Wireshark*
Analytics 

BIG-IP APM 	11.0.0 - 11.6.0				None 					Wireshark*
		10.1.0 - 10.2.4 

BIG-IP ASM 	11.0.0 - 11.6.0				None 					Wireshark*
		10.0.0 - 10.2.4 

BIG-IP Edge 	11.0.0 - 11.3.0				None 					Wireshark*
Gateway		10.1.0 - 10.2.4 

BIG-IP GTM 	11.0.0 - 11.6.0				None 					Wireshark*			
		10.0.0 - 10.2.4 			

BIG-IP Link 	11.0.0 - 11.6.0				None					Wireshark*
Controller 	10.0.0 - 10.2.4

BIG-IP PEM 	11.3.0 - 11.6.0				None					Wireshark*

BIG-IP PSM 	11.0.0 - 11.4.1				None 					Wireshark*
		10.0.0 - 10.2.4 

BIG-IP 		11.0.0 - 11.3.0				None 					Wireshark*
WebAccelerator 	10.0.0 - 10.2.4

BIG-IP WOM 	11.0.0 - 11.3.0				None 					Wireshark*
		10.0.0 - 10.2.4 

ARX 		6.0.0 - 6.4.0 				None 					ARX Manager GUI

Enterprise 	3.0.0 - 3.1.1				None 					Wireshark*
Manager 	2.1.0 - 2.3.0

FirePass 	None 					7.0.0					None
							6.0.0 - 6.1.0 

BIG-IQ Cloud 	4.0.0 - 4.4.0				None					Wireshark*

BIG-IQ Device 	4.2.0 - 4.4.0				None					Wireshark*

BIG-IQ Security 4.0.0 - 4.4.0				None					Wireshark*


*The Wireshark utility (tshark) is installed on the BIG-IP system. Wireshark 
uses the GNUTLS library, which is vulnerable to this CVE.

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 table does not list any version in the column, then no
upgrade candidate currently exists.

To mitigate this vulnerability, you can avoid using the Wireshark utility on 
BIG-IP, BIG-IQ, and EM systems to validate SSL certificates. ARX

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 table does not list any version in the column, then no
upgrade candidate currently exists.

To mitigate this vulnerability, you can limit access for the ARX GUI to only 
use secure networks.

Supplemental Information

SOL9970: Subscribing to email notifications regarding F5 products

SOL9957: Creating a custom RSS feed to view new and updated documents

SOL4602: Overview of the F5 security vulnerability response policy

SOL4918: Overview of the F5 critical issue hotfix policy

SOL167: Downloading software and firmware from F5

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