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CVE-2021-40119— Cisco Policy Suite Static SSH Keys Vulnerability

Quick assessment

Affected
Cisco Cisco Policy Suite (CPS) 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 Policy Suite是美国思科（Cisco）公司的一个套件，提供云原生策略、计费和用户数据管理功能。 Cisco Policy Suite 存在安全漏洞，该漏洞源于Cisco Policy Suite基于密钥的SSH认证机制中跨安装重用静态SSH密钥造成的。攻击者可利用该漏洞通过从他们控制的系统中提取密钥。

CVSS 9.8 · Critical EPSS 2.50% · P84
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I. Basic Information for CVE-2021-40119

Vulnerability Information
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Vulnerability Title
Cisco Policy Suite Static SSH Keys Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the key-based SSH authentication mechanism of Cisco Policy Suite could allow an unauthenticated, remote attacker to log in to an affected system as the root user. This vulnerability is due to the re-use of static SSH keys across installations. An attacker could exploit this vulnerability by extracting a key from a system under their control. A successful exploit could allow the attacker to log in to an affected system as the root user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Policy Suite 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Policy Suite是美国思科（Cisco）公司的一个套件，提供云原生策略、计费和用户数据管理功能。 Cisco Policy Suite 存在安全漏洞，该漏洞源于Cisco Policy Suite基于密钥的SSH认证机制中跨安装重用静态SSH密钥造成的。攻击者可利用该漏洞通过从他们控制的系统中提取密钥。
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 Policy Suite (CPS) Software n/a -

II. Public POCs for CVE-2021-40119

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III. Intelligence Information for CVE-2021-40119

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Vendor Advisories for CVE-2021-40119 (1)

Same Patch Batch · Cisco · 2021-11-04 · 18 CVEs total

CVE-2021-34795 10.0 CRITICAL Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities
CVE-2021-40112 10.0 CRITICAL Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities
CVE-2021-40113 10.0 CRITICAL Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities
CVE-2021-34739 8.1 HIGH Cisco Small Business Series Switches Session Credentials Replay Vulnerability
CVE-2021-34741 7.5 HIGH Cisco Email Security Appliance Denial of Service Vulnerability
CVE-2021-40124 6.7 MEDIUM Cisco AnyConnect Secure Mobility Client for Windows with Network Access Manager Module Pri
CVE-2021-34773 6.5 MEDIUM Cisco Unified Communications Products Cross-Site Request Forgery Vulnerability
CVE-2021-40120 6.5 MEDIUM Cisco Small Business RV Series Routers Command Injection Vulnerability
CVE-2021-40115 6.1 MEDIUM Cisco Webex Video Mesh Cross-Site Scripting Vulnerability
CVE-2021-1500 5.4 MEDIUM Cisco Webex Video Mesh Arbitrary Site Redirection Vulnerability
CVE-2021-34784 5.4 MEDIUM Cisco Prime Infrastructure and Evolved Programmable Network Manager Stored Cross-Site Scri
CVE-2021-40128 5.3 MEDIUM Cisco Webex Meetings Email Content Injection Vulnerability
CVE-2021-40127 5.3 MEDIUM Cisco Small Business 200, 300, and 500 Series Switches Web-Based Management Interface Deni
CVE-2021-34774 4.9 MEDIUM Cisco Common Services Platform Collector Information Disclosure Vulnerability
CVE-2021-34731 4.8 MEDIUM Cisco Prime Access Registrar Stored Cross-Site Scripting Vulnerability
CVE-2021-40126 4.3 MEDIUM Cisco Umbrella Email Enumeration Vulnerability
CVE-2021-34701 4.3 MEDIUM Cisco Unified Communications Products Path Traversal Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Policy Suite (CPS) Software
Same vendor: Cisco
Same weakness: CWE-321

V. Comments for CVE-2021-40119

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