Headline
CVE-2020-3387: Cisco Security Advisory: Cisco SD-WAN vManage Software Remote Code Execution Vulnerability
A vulnerability in Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to execute code with root privileges on an affected system. The vulnerability is due to insufficient input sanitization during user authentication processing. An attacker could exploit this vulnerability by sending a crafted response to the Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to access the software and execute commands they should not be authorized to execute.
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 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
Customers are advised to upgrade to an appropriate fixed software release as indicated in the following table(s). To ensure a complete upgrade solution, consider that this advisory is part of a collection that includes the following advisories:
- cisco-sa-sdw-dos-KWOdyHnB: Cisco SD-WAN Solution Software Denial of Service Vulnerability
- cisco-sa-sdscred-HfWWfqBj: Cisco SD-WAN Solution Software Static Credentials Vulnerability
- cisco-sa-vedgfpdos-PkqQrnwV: Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
- cisco-sa-fpdos-hORBfd9f: Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
- cisco-sa-clibypvman-sKcLf2L: Cisco SD-WAN vManage Software Command Injection Vulnerability
- cisco-sa-vmdirtrav-eFdAxsJg: Cisco SD-WAN vManage Software Directory Traversal Vulnerability
- cisco-sa-vmanrce-4jtWT28P: Cisco SD-WAN vManage Software Remote Code Execution Vulnerability
Cisco SD-WAN vManage Software Release
First Fixed Release for This Vulnerability
First Fixed Release for All Vulnerabilities Described in the Collection of Advisories
Earlier than 18.3
Migrate to a fixed release.
Migrate to a fixed release.
18.3
Migrate to a fixed release.
Migrate to a fixed release.
18.4
Migrate to a fixed release.
Migrate to a fixed release.
19.2
19.2.3
19.2.3
19.3
Migrate to a fixed release.
Migrate to a fixed release.
20.1
20.1.1.1
Migrate to a fixed release.