Cisco ASR 5000 Series Gateway GPRS Support Node contains a vulnerability that could allow an unauthenticated, remote attacker to bypass security restrictions. Updates are available.
A vulnerability in the Wireless Session Protocol (WSP) function of Cisco ASR 5000 Series Gateway GPRS Support Node (GGSN) could allow an unauthenticated, remote attacker to browse free of charge instead of being redirected to a Top-Up portal.
The vulnerability is due to incorrect processing of certain WSP packets. An attacker could exploit this vulnerability by sending crafted WSP packets. An exploit could allow the attacker to browse free of charge instead of being redirected to a Top-Up portal.
Cisco has confirmed the vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco ASR 5000 Series Software versions 12.1 and prior were vulnerable. Later releases of Cisco ASR 5000 Series Software may also be vulnerable.
To exploit this vulnerability, an attacker my need access to trusted, internal networks to send crafted WSP packets to a targeted device. This access requirement may reduce the likelihood of a successful exploit.
Cisco has released a security notice at the following link: CVE-2014-0669
Customers are advised to consult Cisco bug ID CSCuh28371 for the most complete list of affected product versions.
An unauthenticated, remote attacker could exploit this vulnerability to browse free of charge instead of being redirected to a Top-Up portal.
The vulnerability is due to incorrect processing of certain WSP packets by the WSP function of Cisco ASR 5000 Series GGSN.
An unauthenticated, remote attacker could exploit this vulnerability by sending crafted WSP packets to an affected device. An exploit could allow the attacker to browse free of charge instead of being redirected to a Top-Up portal.
Administrators are advised to apply the appropriate updates.
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.
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 firstname.lastname@example.org for assistance.
The security vulnerability applies to the following combinations of products.
Cisco ASR 5000 Series Software
11.0 Base | 12.0 Base | 12.1 Base
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