受影响系统：

    Cisco Web Security Appliance

描述：CVE(CAN) ID: CVE-2017-12303

Cisco AsyncOS操作系统是可以提升思科电子邮件安全设备的安全和性能。

Cisco AsyncOS Software for Cisco Web Security Appliance (WSA)的高级恶意软件保护（AMP）文件过滤存在安全漏洞，可使未经身份验证的远程攻击者绕过配置的AMP文件过滤规则。

<*来源：Cisco
 
  链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsa
*>

建议：厂商补丁：

Cisco
-----
Cisco已经为此发布了一个安全公告（cisco-sa-20171115-wsa）以及相应补丁:
cisco-sa-20171115-wsa：Cisco Web Security Appliance Advanced Malware Protection File Bypass Vulnerability
链接：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsa