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AUSCERT External Security Bulletin Redistribution
ESB-2015.1790
SOL16863: Apache vulnerability CVE-2013-5704
8 July 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2013-5704
Reference: ASB-2015.0009
ESB-2015.1526
ESB-2015.1016
ESB-2015.0917
ESB-2015.0597
ESB-2015.0524
ESB-2015.0385
ESB-2015.0224
ESB-2014.2342
ESB-2014.2329
ESB-2014.1509
ESB-2014.1444
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/16000/800/sol16863.html
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SOL16863: Apache vulnerability CVE-2013-5704
Security Advisory
Original Publication Date: 07/07/2015
Description
The mod_headers module in the Apache HTTP Server 2.2.22 allows remote
attackers to bypass "RequestHeader unset" directives by placing a header in
the trailer portion of data sent with chunked transfer coding. NOTE: the
vendor states "this is not a security issue in httpd as such." (CVE-2013-5704)
Impact
The attacker may be able to modify a chunked request to include trailing
headers, which the Apache HTTP server is not expecting, and potentially bypass
an unset directive in the Apache configuration.
Status
F5 Product Development has assigned ID 519943 (BIG-IP), ID 521050 (BIG-IQ) and
ID 521051 (Enterprise Manager) 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 Versions known to Severity Vulnerable component
be vulnerable be not vulnerable or feature
BIG-IP LTM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP AAM 11.4.0 - 11.6.0 None Low Configuration utility
BIG-IP AFM 11.3.0 - 11.6.0 None Low Configuration utility
BIG-IP Analytics 11.0.0 - 11.6.0 None Low Configuration utility
BIG-IP APM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP ASM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP Edge Gateway 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP GTM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP Link Controller 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP PEM 11.3.0 - 11.6.0 None Low Configuration utility
BIG-IP PSM 11.0.0 - 11.4.1
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP WebAccelerator 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low Configuration utility
BIG-IP WOM 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low Configuration utility
ARX None 6.0.0 - 6.4.0 Not vulnerable None
Enterprise Manager 3.0.0 - 3.1.1 None Low Configuration utility
FirePass None 7.0.0
6.0.0 - 6.1.0 Not vulnerable None
BIG-IQ Cloud 4.0.0 - 4.5.0 None Low Configuration utility
BIG-IQ Device 4.2.0 - 4.5.0 None Low Configuration utility
BIG-IQ Security 4.0.0 - 4.5.0 None Low Configuration utility
BIG-IQ ADC 4.5.0 None Low Configuration utility
LineRate None 2.5.0 - 2.6.0 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
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 for BIG-IP and Enterprise Manager, you should
only permit management access to F5 products over a secure network and limit
shell access to trusted users. For more information, refer to SOL13309:
Restricting access to the Configuration utility by source IP address (11.x)
and SOL13092: Overview of securing access to the BIG-IP system.
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
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