CVE-2019-1766— Cisco IP Phone 8800 Series Session Initiation Protocol软件输入验证漏洞

Cisco IP Phone 8800 Series File Upload Denial of Service Vulnerability

A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software does not restrict the maximum size of certain files that can be written to disk. An attacker who has valid administrator credentials for an affected system could exploit this vulnerability by sending a crafted, remote connection request to an affected system. A successful exploit could allow the attacker to write a file that consumes most of the available disk space on the system, causing application functions to operate abnormally and leading to a DoS condition. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 12.5(1)SR1.

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输入验证不恰当

Cisco IP Phone 8800 Series Session Initiation Protocol软件输入验证漏洞

Cisco IP Phone 8800 Series是美国思科（Cisco）公司的一款8800系列的IP电话。Session Initiation Protocol（SIP）Software是其中的一款会话发起协议软件。 Cisco IP Phone 8800 Series中的SIP软件12.5(1)SR1之前版本的基于Web的管理界面存在输入验证漏洞，该漏洞源于程序没有限制可以写入到磁盘中的文件最大值。远程攻击者可通过发送特制的远程连接请求利用该漏洞造成应用程序运行异常并导致拒绝服务（磁盘空间大量占用）

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