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ESB-2014.1159 - [Cisco] Cisco Adaptive Security Appliance: Denial of service - Remote/unauthenticated

Date: 14 July 2014

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.1159
   Cisco ASA Filter and Inspect Overlap Denial of Service Vulnerability
                               14 July 2014

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

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

Product:           Cisco Adaptive Security Appliance
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-5567  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5567

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

Cisco Security Notice

Cisco ASA Filter and Inspect Overlap Denial of Service Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5567

CVE ID: CVE-2013-5567

Release Date: 2014 July 10 20:07 UTC (GMT)

Last Updated: 2014 July 11 20:24 UTC (GMT)

Related Documents:

Summary

A vulnerability in the inspection and filter features of the Cisco Adaptive 
Security Appliance (ASA) could allow an unauthenticated, remote attacker to 
cause the affected system to reload.

The vulnerability is due to an internal traffic loop condition that can be 
triggered when a received packet is matched for both filtering and inspection
due to a configuration with overlapping traffic matching criteria 
(configuration is not supported). An attacker could exploit this vulnerability
by sending a packet that would be matched by the incorrect configuration. An 
exploit could allow the attacker to trigger an affected system to crash, 
resulting in a denial of service (DoS) condition.

Affected Products

Product More Information CVSS

Cisco Adaptive Security Appliance (ASA) Software CSCui45606 5.4/4.5

What Is a Cisco Security Notice?

The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco 
Security Notices to inform customers of low- to mid-level severity security 
issues involving Cisco products.

Customers who wish to upgrade to a software version that includes fixes for 
these issues should contact their normal support channels. Free software 
updates will not be provided for issues that are disclosed through a Cisco 
Security Notice.

For additional information about Cisco PSIRT publications, see the Cisco 
Security Vulnerability Policy at 
http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html

Customers Using Third-Party Support Organizations

Customers may have Cisco products that are provided or maintained through 
prior or existing agreements with third-party support organizations, such as 
Cisco Partners, authorized resellers, or service providers. For these 
products, customers should consult their service providers or support 
organizations to ensure that any applied workaround or fix is the most 
appropriate in the intended network before it is deployed.

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy, and may lack important information 
or contain factual errors.

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

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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