Headline
CVE-2020-3265: Cisco Security Advisory: Cisco SD-WAN Solution Privilege Escalation Vulnerability
A vulnerability in Cisco SD-WAN Solution software could allow an authenticated, local attacker to elevate privileges to root on the underlying operating system. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to gain root-level privileges.
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: https://www.cisco.com/c/en/us/products/end-user-license-agreement.html
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: https://www.cisco.com/c/en/us/support/web/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
Cisco has fixed this vulnerability in Cisco SD-WAN Solution software Releases 18.4.5, 19.2.2, 20.1.1, 20.3.1 and later.
To download the software from the Software Center on Cisco.com, click Browse all and do the following:
vBond, vEdge Cloud, and vSmart
- Navigate to Routers > Software-Defined WAN (SD-WAN) > SD-WAN > SD-WAN Software Update.
- From the left panel, click 19.2.2 under Latest Release.
- Choose vSmart, vEdge Cloud, and vBond 19.2.2 upgrade image.
vEdge 100, 1000, and 2000 Series Routers
- Navigate to Routers > Software-Defined WAN (SD-WAN) > vEdge Router > vEdge Router Model.
- From the left panel, click 19.2.2 under Latest Release.
- Choose vEdge 19.2.2 Upgrade Image for vEdge 100b, vEdge 100m, vEdge 1000, vEdge 2000 Routers.
vManage Network Management Software
- Navigate to Routers > Software-Defined WAN (SD-WAN) > SD-WAN > SD-WAN Software Update.
- From the left panel, click 19.2.2 under Latest Release.
- Choose vManage 19.2.2 upgrade image.