A vulnerability in the Grapevine update process of the Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system with the privileges of the root user. The vulnerability is due to insufficient input sanitization during the Grapevine update process. An attacker could exploit this vulnerability by authenticating to the affected system with administrative privileges and inserting arbitrary commands into an upgrade parameter. An exploit could allow the attacker to execute arbitrary commands on the affected system with root-level privileges. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160817-apic
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 consult the Cisco Security Advisories and Responses 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 upgrade 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 Technical
Assistance Center (TAC):
http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
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.
Fixed Releases
This vulnerability is fixed in Cisco Application Policy Infrastructure Controller Enterprise Module release 1.2 and later.| Version | Description | Section | Status | Date |
|---|---|---|---|---|
| 1.1 | Updated affected products and fixed releases information. | Affected Products, Fixed Releases | Final | 2016-August-19 |
| 1.0 | Initial public release. | - | Final | 2016-August-17 |
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