ID de Prueba:	1.3.6.1.4.1.25623.1.0.106857
Categoría:	CISCO
Título:	Cisco Network Convergence System 5500 Series Routers Local Denial of Service Vulnerability (cisco-sa-20170607-ncs)
Resumen:	A vulnerability in the forwarding component of Cisco IOS XR; Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an; authenticated, local attacker to cause the router to stop forwarding data traffic across Traffic; Engineering tunnels, resulting in a denial of service (DoS) condition.
Descripción:	Summary: A vulnerability in the forwarding component of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an authenticated, local attacker to cause the router to stop forwarding data traffic across Traffic Engineering tunnels, resulting in a denial of service (DoS) condition. Vulnerability Insight: The vulnerability occurs because adjacency information for a Traffic Engineering tunnel's physical source interface is not propagated to hardware after the adjacency is lost. This information needs to be relearned. An attacker could exploit this vulnerability by logging in to the router's CLI with administrator privileges and issuing the clear arp-cache command. Vulnerability Impact: A local attacker may cause a denial of service condition. Solution: See the referenced vendor advisory for a solution. CVSS Score: 1.9 CVSS Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2017-6666 BugTraq ID: 98987 http://www.securityfocus.com/bid/98987 http://www.securitytracker.com/id/1038630
Copyright	Copyright (C) 2017 Greenbone Networks GmbH

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