Cisco security advisory

Number: AV20-018
Date: 23 January 2020

On 22 January 2020 Cisco released a number of security advisories to address vulnerabilities affecting multiple products. Of note, a vulnerability VulnerabilityA flaw or weakness in the design or implementation of an information system or its environment that could be exploited to adversely affect an organization's assets or operations. in the Cisco Firepower Management Center tracked as CVE-2019-16028, a vulnerability in Cisco IOS XE SD-WAN Software tracked as CVE-2019-1950 and a vulnerability in Cisco IOS XR Software tracked as CVE-2019-16018.

Successful exploitation of these vulnerabilities may allow a remote actor to bypass authentication AuthenticationA process or measure used to verify a users identity. and execute arbitrary actions with administrative privileges Administrative privilegesThe permissions that allow a user to perform certain functions on a system or network, such as installing software and changing configuration settings. on an affected device, log in using default credentials with elevated privileges and take complete control of the device or cause a denial of service (DoS DOSSee denial-of-service attack. ) condition in the Border Gateway GatewayAn intermediate system that is the interface between two computer networks. A gateway can be a server, firewall, router, or other device that enables data to flow through a network. Protocol (BGP) service.

The Cyber Centre encourages users and administrators to review the Cisco Security Advisories and Alerts webpage at the link below and apply the necessary updates:

https://tools.cisco.com/security/center/publicationListing.x

Note to Readers

The Canadian Centre for Cyber Security Cyber securityThe protection of digital information, as well as the integrity of the infrastructure housing and transmitting digital information. More specifically, cyber security includes the body of technologies, processes, practices and response and mitigation measures designed to protect networks, computers, programs and data from attack, damage or unauthorized access so as to ensure confidentiality, integrity and availability. (Cyber Centre) operates as part of the Communications Security Establishment.  We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure Critical infrastructureProcesses, systems, facilities, technologies, networks, assets, and services essential to the health, safety, security, or economic well-being of Canadians and the effective functioning of government. Critical infrastructure can be stand-alone or interconnected and interdependent within and across provinces, territories, and national borders. Disruptions of critical infrastructure could result in catastrophic loss of life, adverse economic effects, and significant harm to public confidence. , Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.

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