CVE-2021-1521— Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Denial of Service Vulnerability

Cisco Video Surveillance 8000 Series IP Cameras Cisco Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol implementation for Cisco Video Surveillance 8000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause an affected IP camera to reload. This vulnerability is due to missing checks when processing Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected IP camera. A successful exploit could allow the attacker to cause the affected IP camera to reload unexpectedly, resulting in a denial of service (DoS) condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

内存缓冲区边界内操作的限制不恰当

Cisco Video Surveillance 8000 Series IP Cameras 缓冲区错误漏洞

Cisco Video Surveillance 8000 Series IP Cameras是美国思科（Cisco）公司的一款视频监控摄像头。 Cisco Video Surveillance 8000 Series IP Cameras 存在缓冲区错误漏洞，该漏洞源于处理思科发现协议消息时缺少检查。攻击者可利用该漏洞导致受影响的IP摄像机意外重新加载，从而导致拒绝服务(DoS)状态。

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