Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page, 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.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:
Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
Customers are advised to upgrade their appliances as indicated in the Remediation column of the following table:
Determine the BIOS Version and Cisco IMC Firmware Release
Cisco FMC 1000, 2500, and 4500
To determine the current BIOS version on a Cisco FMC, run the command sudo dmidecode -t bios -q from the Linux shell (expert mode). It is not possible to see the installed Cisco IMC firmware release, but the firmware will be upgraded as part of Hotfix CJ along with the BIOS firmware.
Cisco Secure Network Server
The current BIOS version and Cisco IMC releases are listed in the Admin > Firmware Management section of the web-based management interface. The Cisco IMC firmware release is listed as BMC.
Cisco Threat Grid
It is not possible to see the current BIOS version. Instead, the Cisco Threat Grid software release needs to be verified because the Cisco IMC firmware will be upgraded as part of Cisco Threat Grid software release 2.8. The current build number is listed in the Operations > Update Appliance section of the web-based management interface.