CVE-2019-1726— Cisco NX-OS Software CLI Bypass to Internal Service Vulnerability
Quick assessment
Affected
Cisco Cisco NX-OS Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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中的CLI中存在操作系统命令注入漏洞，该漏洞源于外部输入数据构造操作系统可执行命令过程中，网络系统或产品未正确过滤其中的特殊字符、命令等。攻击者可利用该漏洞执行非法操作系统命令。
Possible ATT&CK Techniques 3 AI
T1055 · Process Injection T1574 · Hijack Execution Flow T1078 · Valid Accounts
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I. Basic Information for CVE-2019-1726
Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software CLI Bypass to Internal Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to access internal services that should be restricted on an affected device, such as the NX-API. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument to the affected command. A successful exploit could allow the attacker to bypass intended restrictions and access internal services of the device. An attacker would need valid device credentials to exploit this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 操作系统命令注入漏洞
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中的CLI中存在操作系统命令注入漏洞，该漏洞源于外部输入数据构造操作系统可执行命令过程中，网络系统或产品未正确过滤其中的特殊字符、命令等。攻击者可利用该漏洞执行非法操作系统命令。
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)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software | unspecified ~ 6.2(25) | - |
|
II. Public POCs for CVE-2019-1726
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-1726 (2)
-
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-cli-bypass vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2019-05-15 · 36 CVEs total
| CVE-2019-1767 | Cisco NX-OS Software Buffer Overflow and Command Injection Vulnerability | |
| CVE-2019-1775 | Cisco NX-OS Software Command Injection Vulnerability | |
| CVE-2019-1776 | Cisco NX-OS Software Command Injection Vulnerability | |
| CVE-2019-1772 | Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerability | |
| CVE-2019-1773 | Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerabilities | |
| CVE-2019-1769 | Cisco NX-OS Software Line Card Command Injection Vulnerability | |
| CVE-2019-1770 | Cisco NX-OS Software Command Injection Vulnerability | |
| CVE-2019-1771 | Cisco Webex Network Recording Player Arbitrary Code Execution Vulnerability | |
| CVE-2019-1735 | Cisco NX-OS Software Command Injection Vulnerability (CVE-2019-1735) | |
| CVE-2019-1774 | Cisco NX-OS Software Command Injection Vulnerability | |
| CVE-2019-1730 | Cisco NX-OS Software Bash Bypass Guest Shell Vulnerability | |
| CVE-2019-1731 | Cisco NX-OS Software SSH Key Information Disclosure Vulnerability | |
| CVE-2019-1732 | Cisco NX-OS Software Remote Package Manager Command Injection Vulnerability | |
| CVE-2019-1733 | Cisco NX-OS Software NX-API Sandbox Cross-Site Scripting Vulnerability | |
| CVE-2019-1727 | Cisco NX-OS Software Python Parser Privilege Escalation Vulnerability | |
| CVE-2019-1728 | Cisco FXOS and NX-OS Software Secure Configuration Bypass Vulnerability | |
| CVE-2019-1729 | Cisco NX-OS Software Arbitrary File Overwrite Vulnerability | |
| CVE-2019-1717 | Cisco Video Surveillance Manager Web-Based Management Interface Information Disclosure Vul | |
| CVE-2019-1795 | Cisco FXOS and NX-OS Software Command Injection Vulnerability | |
| CVE-2019-1811 | Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities |
Showing top 20 of 36 CVEs. View all on vendor page → →
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V. Comments for CVE-2019-1726
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