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AUSCERT External Security Bulletin Redistribution
ESB-2014.1692
SOL15623: GnuTLS vulnerability - CVE-2009-5138
29 September 2014
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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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The University of Queensland
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