CVE-2021-1370— Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Privilege Escalation Vulnerability

Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Privilege Escalation Vulnerability

A vulnerability in a CLI command of Cisco IOS XR Software for the Cisco 8000 Series Routers and Network Convergence System 540 Series Routers running NCS540L software images could allow an authenticated, local attacker to elevate their privilege to root. To exploit this vulnerability, an attacker would need to have a valid account on an affected device. The vulnerability is due to insufficient validation of command line arguments. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the prompt. A successful exploit could allow an attacker with low-level privileges to escalate their privilege level to root.

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OS命令中使用的特殊元素转义处理不恰当(OS命令注入)

多款Cisco产品操作系统命令注入漏洞

Cisco 8000 Series Router和Cisco Network Convergence System 540 Series Routers都是美国Cisco公司的一款路由器设备。 多款Cisco 路由器的Cisco IOS XR存在操作系统命令注入漏洞。该漏洞是由于命令行参数验证不足所致。攻击者可以通过对设备进行身份验证并在提示符下输入精心制作的命令来利用此漏洞。成功的利用可以使具有低级特权的攻击者将其特权级别提升为root。以下产品及版本受到影响：Cisco 8000 Series Rou

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