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CVE-2022-20814— Cisco Expressway Series and Cisco TelePresence VCS Improper Certificate Validation Vulnerability

Quick assessment

Affected
Cisco Cisco TelePresence Video Communication Server (VCS) Expressway
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 Expressway Series和Cisco TelePresence Video Communication Server（VCS）都是美国思科（Cisco）公司的产品。Cisco Expressway Series是一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。Cisco TelePresence Video Communication Server是一款视频通信服务器。 Cisco Expressw

CVSS 7.4 · High EPSS 0.91% · P57
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I. Basic Information for CVE-2022-20814

Vulnerability Information
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Vulnerability Title
Cisco Expressway Series and Cisco TelePresence VCS Improper Certificate Validation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the certificate validation of Cisco Expressway-C and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data.  The vulnerability is due to a lack of validation of the SSL server certificate that an affected device receives when it establishes a connection to a Cisco Unified Communications Manager device. An attacker could exploit this vulnerability by using a man-in-the-middle technique to intercept the traffic between the devices, and then using a self-signed certificate to impersonate the endpoint. A successful exploit could allow the attacker to view the intercepted traffic in clear text or alter the contents of the traffic. Note: Cisco Expressway-E is not affected by this vulnerability.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Expressway Series和Cisco TelePresence Video Communication Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Expressway Series和Cisco TelePresence Video Communication Server（VCS）都是美国思科（Cisco）公司的产品。Cisco Expressway Series是一款用于防火墙外访问设备的软件。该软件为防火墙外的用户提供了简单、高度安全的访问功能，帮助远程办公人员在他们选择的设备上更有效地工作。Cisco TelePresence Video Communication Server是一款视频通信服务器。 Cisco Expressw
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 TelePresence Video Communication Server (VCS) Expressway X8.11.2 -

II. Public POCs for CVE-2022-20814

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III. Intelligence Information for CVE-2022-20814

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Vendor Advisories for CVE-2022-20814 (4)

Same Patch Batch · Cisco · 2024-11-15 · 50 CVEs total

CVE-2023-20036 9.9 CRITICAL Cisco Industrial Network Director Command Injection Vulnerability
CVE-2023-20154 9.1 CRITICAL Cisco Modeling Labs External Authentication Bypass Vulnerability
CVE-2022-20655 8.8 HIGH Cisco 多款产品操作系统命令注入漏洞
CVE-2023-20125 8.6 HIGH Cisco BroadWorks Network Server TCP Denial of Service Vulnerability
CVE-2022-20649 8.1 HIGH Cisco Redundancy Configuration Manager Debug Remote Code Execution Vulnerability
CVE-2022-20685 7.5 HIGH Multiple Cisco Products Snort Modbus Denial of Service Vulnerability
CVE-2022-20853 7.4 HIGH Cisco Expressway Series and Cisco TelePresence VCS Cross-Site Request Forgery Vulnerabilit
CVE-2022-20793 6.8 MEDIUM Cisco Touch 10 Device Insufficient Identity Verification Vulnerability
CVE-2021-34752 6.7 MEDIUM Cisco Firepower Threat Defense Command Injection Vulnerabilities
CVE-2023-20090 6.7 MEDIUM Cisco TelePresence Collaboration Endpoint and RoomOS Software Privilege Escalation Vulnera
CVE-2022-20656 6.5 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Path Traversal V
CVE-2022-20652 6.5 MEDIUM Cisco Tetration Command Injection Vulnerability
CVE-2022-20931 6.5 MEDIUM Cisco Touch 10 Device Downgrade Attack Vulnerability
CVE-2021-1484 6.5 MEDIUM Cisco SD-WAN vManage Command Injection Vulnerability
CVE-2021-1482 6.4 MEDIUM Cisco SD-WAN vManage Authorization Bypass Vulnerability
CVE-2021-1483 6.4 MEDIUM Cisco SD-WAN vManage Software XML External Entity Vulnerability
CVE-2022-20871 6.3 MEDIUM Cisco Secure Web Appliance Privilege Escalation Vulnerability
CVE-2022-20849 6.1 MEDIUM Cisco IOS XR Software Broadband Network Gateway PPPoE Denial of Service Vulnerability
CVE-2022-20631 6.1 MEDIUM Cisco Enterprise Chat and Email Cross-Site Scripting Vulnerability
CVE-2022-20657 6.1 MEDIUM Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Cross-Site Scrip

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco TelePresence Video Communication Server (VCS) Expressway
Same vendor: Cisco
Same weakness: CWE-295

V. Comments for CVE-2022-20814

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