Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

              sol20979231: Apache vulnerability CVE-2011-3639
                              5 January 2016


        AusCERT Security Bulletin Summary

Product:           F5 ARX
Publisher:         F5
Operating System:  Network Appliance
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2011-3639  

Reference:         ASB-2011.0111

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

sol20979231: Apache vulnerability CVE-2011-3639 Security AdvisorySecurity 

Original Publication Date: 12/29/2015

Vulnerability Description

The mod_proxy module in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x
before 2.2.18, when the Revision 1179239 patch is in place, does not properly
interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches 
for configuration of a reverse proxy, which allows remote attackers to send 
requests to intranet servers by using the HTTP/0.9 protocol with a malformed 
URI containing an initial @ (at sign) character. NOTE: this vulnerability 
exists because of an incomplete fix for CVE-2011-3368. (CVE-2011-3639) Impact

An attacker could make a reverse proxy connect to an arbitrary server that is
not directly accessible to the attacker by sending an HTTP version 0.9 request
to a vulnerable Apache HTTP server.

Security Issue Status

F5 Product Development has assigned ID 431234 (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 

Product	Versions known to be vulnerable	Versions known to be not vulnerable	Severity	Vulnerable component or feature

ARX 	6.0.0 - 6.4.0 			None 					Low		Management API (disabled by default)

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 for the ARX system, do not enable the API 

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

SOL10322: FirePass hotfix matrix

SOL12766: ARX hotfix matrix

SOL3430: Installing FirePass hotfixes

SOL6664: Obtaining and installing OPSWAT hotfixes

SOL10942: Installing OPSWAT hotfixes on BIG-IP APM systems

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
Comment: http://www.auscert.org.au/render.html?it=1967