CVE-2019-1730— Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability

Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability

A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to bypass the limited command set of the restricted Guest Shell and execute commands at the privilege level of a network-admin user outside of the Guest Shell. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to the incorrect implementation of a CLI command that allows a Bash command to be incorrectly invoked on the Guest Shell CLI. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Guest Shell prompt. A successful exploit could allow the attacker to issue commands that should be restricted by a Guest Shell account.

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权限、特权和访问控制

Cisco NX-OS Software 权限许可和访问控制问题漏洞

Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software中Bash shell的实现存在权限许可和访问控制问题漏洞。该漏洞源于网络系统或产品缺乏有效的权限许可和访问控制措施。以下产品及版本受到影响：Cisco Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 3600 Platform Switches；Nexus 7000 Series

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