Test ID:	1.3.6.1.4.1.25623.1.0.106169
Category:	CISCO
Title:	Cisco Unified Communications Manager IM and Presence Service SIP Packet Processing Denial of Service Vulnerability
Summary:	A vulnerability in Session Initiation Protocol (SIP) processing functions; of the Cisco Unified Communications Manager Instant Messaging (IM) and Presence Service could allow an; unauthenticated, remote attacker to cause the Cisco SIP Proxy Daemon (sipd) process to restart unexpectedly,; resulting in a denial of service (DoS) condition on a targeted system.
Description:	Summary: A vulnerability in Session Initiation Protocol (SIP) processing functions of the Cisco Unified Communications Manager Instant Messaging (IM) and Presence Service could allow an unauthenticated, remote attacker to cause the Cisco SIP Proxy Daemon (sipd) process to restart unexpectedly, resulting in a denial of service (DoS) condition on a targeted system. Vulnerability Insight: The vulnerability is due to improper input validation of SIP packet headers. An attacker could exploit this vulnerability by sending a crafted SIP packet to a targeted system. A successful exploit could allow the attacker to cause the sipd process to restart unexpectedly, resulting in a DoS condition on the system. If the sipd process restarts repeatedly, a successful exploit could also result in a sustained DoS condition and cause high disk utilization due to a large number of sipd core files being written to disk, which could exacerbate the DoS condition. Vulnerability Impact: An unauthenticated remote attacker may cause the Cisco SIP Proxy Daemon (sipd) process to restart unexpectedly, resulting in a denial of service (DoS) condition on a targeted system. Affected Software/OS: Versions 9.1(1) SU6, 9.1(1) SU6a, 9.1(1) SU7, 10.5(2) SU2, 10.5(2) SU2a, 11.0(1) SU1, and 11.5(1). Solution: Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-1466 BugTraq ID: 92271 http://www.securityfocus.com/bid/92271 Cisco Security Advisory: 20160803 Cisco Unified Communications Manager IM and Presence Service SIP Packet Processing Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160803-ucm http://www.securitytracker.com/id/1036526
Copyright	Copyright (C) 2016 Greenbone AG

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