发布日期：2022-07-06
更新日期：2022-07-07

受影响系统：

Cisco Cisco Unified Communications Manager
Cisco Cisco Unified Communications Manager SME
Cisco Cisco Unity Connection

描述：

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CVE(CAN) ID: CVE-2022-20752

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。Unified Communications Manager Session Management Edition是Unified Communications Manager的会话管理版。
Cisco Unified Communications Manager（Unified CM）、Cisco Unified Communications Manager Session Management Edition（Unified CM SME）和Cisco Unity Connection存在定时攻击漏洞，该漏洞源于未设置足够强度的系统密码保护机制。未经身份验证的远程攻击者可利用该漏洞执行定时攻击，获取系统密码。

<*链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-timing-JVbHECOK
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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-ucm-timing-JVbHECOK）以及相应补丁:
cisco-sa-ucm-timing-JVbHECOK：Cisco Unified Communications Products Timing Attack Vulnerability
链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-timing-JVbHECOK

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