CVE-2019-1596— Cisco NX-OS Software Bash Shell Privilege Escalation Vulnerability

Cisco NX-OS Software Bash Shell Privilege Escalation Vulnerability

A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level to root. The attacker must authenticate with valid user credentials. The vulnerability is due to incorrect permissions of a system executable. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Bash prompt. A successful exploit could allow the attacker to escalate their privilege level to root. Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

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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中的Bash shell的实现存在权限许可和访问控制漏洞。本地攻击者可通过对设备进行身份验证并在Bash弹出框中输入特制的命令利用该漏洞将用户权限提升至root。以下产品受到影响：Cisco Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 3600 Platform Switche

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