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CVE-2024-20399— Cisco NX-OS Software CLI Command Injection Vulnerability

Quick assessment

Affected
Cisco Cisco NX-OS Software
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 存在安全漏洞，该漏洞源于软件 CLI 中的一个漏洞可能允许经过身份验证的本地攻击者以 root 身份在受影响设备的底层操作系统上执行任意命令。

CVSS 6.0 · Medium KEV EPSS 4.31% · P90

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2024-20399

Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software CLI Command Injection Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated user in possession of Administrator credentials to execute arbitrary commands as root on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of arguments that are passed to specific configuration CLI commands. An attacker could exploit this vulnerability by including crafted input as the argument of an affected configuration CLI command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of root. Note: To successfully exploit this vulnerability on a Cisco NX-OS device, an attacker must have Administrator credentials. The following Cisco devices already allow administrative users to access the underlying operating system through the bash-shell feature, so, for these devices, this vulnerability does not grant any additional privileges: Nexus 3000 Series Switches Nexus 7000 Series Switches that are running Cisco NX-OS Software releases 8.1(1) and later Nexus 9000 Series Switches in standalone NX-OS mode
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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 存在安全漏洞，该漏洞源于软件 CLI 中的一个漏洞可能允许经过身份验证的本地攻击者以 root 身份在受影响设备的底层操作系统上执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco NX-OS Software 8.2(5) -

II. Public POCs for CVE-2024-20399

# POC Description Source Link Shenlong Link
1 Private exploit for Cisco Nexus giving RCE https://github.com/Blootus/CVE-2024-20399-Cisco-RCE POC Details
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III. Intelligence Information for CVE-2024-20399

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Vendor Advisories for CVE-2024-20399 (1)

Other References for CVE-2024-20399 (1)

IV. Related Vulnerabilities

Same product: Cisco NX-OS Software
Same vendor: Cisco
Same weakness: CWE-78

V. Comments for CVE-2024-20399

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