Cisco Security Advisory
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AV:A/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C
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Cisco uBR10000 Series Universal Broadband Routers contain a vulnerability that could allow an unauthenticated, adjacent attacker to trigger the reload of the routing engine on the affected device.
An attacker could exploit this vulnerability by manipulating IPv4 and IPv6 address assignments on a dual-stack modem connected to the affected device.
Cisco has confirmed the vulnerability in a security notice and software updates are available.
To exploit the vulnerability, a dual-stack modem must be connected to an affected device. In addition, an attacker must have access to a trusted, internal network to manipulate the modem in a manner to trigger the vulnerability. This access requirement may reduce the likelihood of a successful attack.
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Cisco has released a security notice for bug ID CSCue15313 at the following link: CVE-2013-1189
Vulnerable Products
At the time this alert was first published, Cisco uBR10000 Series devices running Cisco IOS Software Releases 15.3(3)S and prior were vulnerable. Later Cisco IOS Software releases running on Cisco uBR10000 Series devices 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 apply the appropriate updates.
Administrators are advised to allow only privileged users to access administration or management systems.
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 e-mail 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 2013-Apr-11
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