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Cisco Security Notice

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

ProductMore InformationCVSS
Cisco Adaptive Security Appliance (ASA) SoftwareCSCuf790915.0/4.5
Cisco Firewall Services Module (FWSM)CSCug458505.0/4.5

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/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

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