A vulnerability in the administrative web interface of the Cisco DPC3939 (XB3) router could allow an authenticated, remote attacker to execute arbitrary commands on the affected system and on the devices managed by the system. The vulnerability is due to improper user input validation. An attacker could exploit this vulnerability by crafting input into the affected fields of the web interface. An exploit could allow the attacker to execute arbitrary commands on the system. Cisco has not released software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151208-xb3
When considering software upgrades, customers are advised to consult the Cisco Security Advisories, Responses, and Notices archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
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.
| Version | Description | Section | Status | Date |
|---|---|---|---|---|
| 1.0 | Initial public release | - | Final | 2015-December-08 |
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