Cisco 呼叫组件CUCM 的 CTI服务存在拒绝服务漏洞

　　受影响系统：

　　Cisco Unified Communications Manager 6.x

　　Cisco Unified Communications Manager 5.x

　　不受影响系统：

　　Cisco Unified Communications Manager 6.1(2)

　　Cisco Unified Communications Manager 5.1(3c)

　　描述：

　　Cisco Unified Communications Manager（CUCM，之前被称为CallManager）是Cisco IP电话解决方案中的呼叫处理组件。

　　CUCM的计算机电话集成（CTI）管理器服务在处理畸形输入时存在拒绝服务漏洞，远程攻击者可以通过向默认的TCP 2748监听端口发送恶意报文导致语音服务中断。

　　厂商补丁：

　　Cisco已经为此发布了一个安全公告（cisco-sa-20080625-cucm）以及相应补丁:

　　cisco-sa-20080625-cucm：Cisco Unified Communications Manager Denial of Service and Authentication Bypass Vulnerabilities

　　链接http://www.cisco.com/warp/public/707/cisco-sa-20080625-cucm.shtml

　　补丁下载：

　　http://tools.cisco.com/support/downloads/go/ReleaseType.x?optPlat=null&isPlatform=Y&mdfid=280735907&sftType=Unified%20Communications%20Manager%20Updates&treeName=Voice%20and%20Unified%20Communications&modelName=Cisco%20Unified%20Communications%20Manager%20Version%205.1&mdfLevel=Software%20Version/Option&treeMdfId=278875240&modifmdfid=null&imname=null&hybrid=Y&imst=N

　　http://tools.cisco.com/support/downloads/go/PlatformList.x?sftType=Unified%20Communications%20Manager%20Updates&mdfid=281023410&treeName=Voice%20and%20Unified%20Communications&mdfLevel=Software%20Version/Option&url=null&modelName=Cisco%20Unified%20Communications%20Manager%20Version%206.1&isPlatform=N&treeMdfId=278875240&modifmdfid=null&imname=null&hybrid=Y&imst=N