Test ID:	1.3.6.1.4.1.25623.1.0.106860
Category:	CISCO
Title:	Cisco IP Phone 8800 Series SIP DoS Vulnerability (cisco-sa-20170607-sip)
Summary:	A vulnerability in Session Initiation Protocol (SIP) call; handling of Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to; cause a denial of service (DoS) condition due to the SIP process unexpectedly restarting. All; active phone calls are dropped as the SIP process restarts.
Description:	Summary: A vulnerability in Session Initiation Protocol (SIP) call handling of Cisco IP Phone 8800 Series devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the SIP process unexpectedly restarting. All active phone calls are dropped as the SIP process restarts. Vulnerability Insight: The vulnerability is due to incomplete input validation of the SIP packet header. An attacker could exploit this vulnerability by sending a malformed SIP packet to a targeted phone. Vulnerability Impact: An exploit could allow the attacker to cause a DoS condition when all phone calls are dropped, due to the SIP process unexpectedly restarting. Solution: See the referenced vendor advisory for a solution. CVSS Score: 4.3 CVSS Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-6656 BugTraq ID: 98996 http://www.securityfocus.com/bid/98996 http://www.securitytracker.com/id/1038636
Copyright	Copyright (C) 2017 Greenbone AG

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