CVE-2019-1731— Cisco NX-OS Software SSH Key Information Disclosure 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SSH CLI密钥管理功能存在信息泄露漏洞，该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。
Possible ATT&CK Techniques 2 AI
T1210 · Exploitation of Remote Services T1552 · Unsecured Credentials
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I. Basic Information for CVE-2019-1731
Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software SSH Key Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the SSH CLI key management functionality of Cisco NX-OS Software could allow an authenticated, local attacker to expose a user's private SSH key to all authenticated users on the targeted device. The attacker must authenticate with valid administrator device credentials. The vulnerability is due to incomplete error handling if a specific error type occurs during the SSH key export. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the CLI. A successful exploit could allow the attacker to expose a user's private SSH key. In addition, a similar type of error in the SSH key import could cause the passphrase-protected private SSH key to be imported unintentionally.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 信息泄露漏洞
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SSH CLI密钥管理功能存在信息泄露漏洞，该漏洞源于网络系统或产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。
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 ~ 8.3(1) | - |
|
II. Public POCs for CVE-2019-1731
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2019-1731 (2)
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🔗 Cisco NX-OS Software SSH Key Information Disclosure Vulnerability Read full article 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-2019-1732 | 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-2019-1726 | Cisco NX-OS Software CLI Bypass to Internal Service 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-2019-1731
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