Cisco Security Advisory
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AV:A/AC:L/Au:N/C:P/I:P/A:N/E:POC/RL:OF/RC:C
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A vulnerability in the multicast Domain Name System (mDNS) used for autonomic networking in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to read or overwrite autonomic networking services discovered via mDNS.
The vulnerability is due to unconstrained autonomic networking mDNS. An attacker could exploit this vulnerability by capturing data on the segment or sending crafted mDNS responses.
Cisco has confirmed the vulnerability in a security notice and released software updates.
Although an attacker does not need to authenticate to a targeted device to exploit this vulnerability, the attacker must have access to the same collision or broadcast domain of the device to attempt an exploit. The access requirement may reduce the likelihood of a successful exploit.
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Customers are advised to consult Cisco bug ID CSCun64867 for the most complete list of affected product versions.
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com for assistance.
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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 2014-Jun-13
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