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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0575
            Time-Range Object Access List Bypass Vulnerability
                               24 April 2013

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

Product:           Cisco Adaptive Security Appliance (ASA) Software
                   Cisco Firewall Services Module (FWSM)
Operating System:  Cisco
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-1195  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1195

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Time-Range Object Access List Bypass Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1195

CVE ID: CVE-2013-1195

Release Date: 2013 April 22 11:56 UTC (GMT)

Last Updated: 2013 April 22 11:56 UTC (GMT)

Summary

A vulnerability in the implementation of the time-range object could allow an
unauthenticated, remote attacker to bypass access lists that are using the 
time-range option.

The vulnerability is due to improper implementation of the code for the 
time-range object, when the periodic command is used. Due to this issue, the 
time-range object may have no effect. Therefore, depending on the access-list
statement (permit or deny), an attacker could bypass the access list. An 
attacker could exploit this vulnerability by sending traffic through the 
affected system. 

Affected Products 

Product 				More Information 	CVSS 
Cisco Adaptive Security Appliance 	CSCuf79091 		5.0/4.5
(ASA) Software 				 

Cisco Firewall Services Module (FWSM) 	CSCug45850 		5.0/4.5 

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/en/US/products/products_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.

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