Cisco Security Advisory
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AV:N/AC:H/Au:N/C:N/I:N/A:C/E:F/RL:U/RC:C
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A vulnerability in the Cisco Aironet 3600 Series Access Point could allow an unauthenticated, remote attacker to trigger a denial of service condition.
The vulnerability is due to a memory corruption condition that could occur when the device switches between FlexConnect and Standalone mode. An attacker could exploit this vulnerability by disrupting the communications path between a configured and provisioned FlexConnect access point and the Cisco Wireless LAN Controller. An exploit could allow the attacker to cause the access point to crash, resulting in a denial of service condition forcing the device to restart.
This issue has been observed to occur when a switch between FlexConnect and Standalone mode transpires frequently during a 24 to 48 hour period.
Cisco has confirmed this vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker may require access to trusted, internal networks in which the targeted device may reside. This access requirement could limit the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Customers should refer to Cisco bug ID CSCuh71210 for the most complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco Aironet Access Point Software version 7.4 is vulnerable. Later releases of Cisco Aironet Access Point Software may also be affected.Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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Software updates are not available.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2013-Jul-22
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