发布日期：2022-04-20
更新日期：2022-06-07

受影响系统：

Cisco Cisco Unified Communications Manager
Cisco Cisco Unified Communications Manager SME

描述：

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CVE(CAN) ID: CVE-2022-20789

Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。Unified Communications Manager Session Management Edition是Unified Communications Manager的会话管理版。
Cisco Unified Communications Manager和Cisco Unified Communications Manager Session Management Edition存在任意文件写入漏洞，该漏洞源于程序对系统脚本应用了错误的限制。经过身份验证的远程攻击者可利用该漏洞在受影响的系统上写入任意文件。

<*链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-arb-write-74Qzru
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建议：

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厂商补丁：

Cisco
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Cisco已经为此发布了一个安全公告（cisco-sa-cucm-arb-write-74QzruUU）以及相应补丁:
cisco-sa-cucm-arb-write-74QzruUU：Cisco Unified Communications Products Arbitrary File Write Vulnerability
链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-arb-write-74QzruUU

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