安全研究

安全漏洞
Cisco Unified Communications Manager CTI服务拒绝服务漏洞

发布日期:2008-06-25
更新日期:2008-06-26

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:
BUGTRAQ  ID: 29933
CVE(CAN) ID: CVE-2008-2061

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。

<*来源:VoIPshield
  
  链接:http://www.voipshield.com/component/option,com_fabrik/Itemid,203/task,viewTableRowDetails/fabrik,1/rowid,64/_cursor,49/_total,94/tableid,1/
        http://secunia.com/advisories/30848/
        http://www.cisco.com/warp/public/707/cisco-sa-20080625-cucm.shtml
*>

建议:
临时解决方法:

* 仅允许来自包含有运行启用了CTI应用的网络对TCP 2748端口的访问。

厂商补丁:

Cisco
-----
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

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