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AUSCERT External Security Bulletin Redistribution
ESB-2013.1520
Cisco Secure ACS Distributed Deployment Denial of Service Vulnerability
24 October 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Secure Access Control System
Publisher: Cisco Systems
Operating System: Windows
VMware ESX Server
Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2013-5536
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5536
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Cisco Security Notice
Cisco Secure ACS Distributed Deployment Denial of Service Vulnerability
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5536
CVE ID: CVE-2013-5536
Release Date: 2013 October 22 21:19 UTC (GMT)
Last Updated: 2013 October 23 16:31 UTC (GMT)
Related Documents:
Summary
A vulnerability in the firewall modules of Cisco Secure Access Control System
(ACS) could allow an unauthenticated, remote attacker to cause certain internal
processes to crash.
The vulnerability is due to improper implementation of the firewall rule to
limit incoming packets. An attacker could exploit this vulnerability by
flooding the affected service with crafted packets. An exploit could allow
the attacker to render some processes nonoperational, resulting in a denial
of service (DoS) condition.
Affected Products
Product More Information CVSS
Cisco Secure Access Control System (ACS) CSCui51521 5.0/4.8
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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