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CVE-2022-20773— Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability

CVSS 7.5 · High EPSS 0.88% · P76
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I. Basic Information for CVE-2022-20773

Vulnerability Information
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Vulnerability Title
Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance (VA) could allow an unauthenticated, remote attacker to impersonate a VA. This vulnerability is due to the presence of a static SSH host key. An attacker could exploit this vulnerability by performing a man-in-the-middle attack on an SSH connection to the Umbrella VA. A successful exploit could allow the attacker to learn the administrator credentials, change configurations, or reload the VA. Note: SSH is not enabled by default on the Umbrella VA.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用硬编码的密码学密钥
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Umbrella 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Umbrella是美国思科（Cisco）公司的一套云安全平台。该平台能够预防网络钓鱼、恶意软件和勒索软件等网络威胁。 Cisco Umbrella 虚拟设备（VA）存在安全漏洞，该漏洞源于存在静态 SSH 主机密钥。攻击者利用此漏洞可以通过对与 Umbrella VA 的 SSH 连接执行中间人攻击。成功利用此漏洞可让攻击者了解管理员凭据、更改配置或重新加载 VA。以下产品和版本受到影响：3.2 及之前版本和 3.3 版本。
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

VendorProductAffected VersionsCPESubscribe
CiscoCisco Umbrella Insights Virtual Appliance n/a -

II. Public POCs for CVE-2022-20773

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III. Intelligence Information for CVE-2022-20773

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IV. Related Vulnerabilities

Same product: Cisco Umbrella Insights Virtual Appliance
Same vendor: Cisco
Same weakness: CWE-321

V. Comments for CVE-2022-20773

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