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CVE-2022-20812— Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities

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 9.0 · Critical EPSS 1.93% · P79
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I. Basic Information for CVE-2022-20812

Vulnerability Information
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Vulnerability Title
Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device. For more information about these vulnerabilities, see the Details section of this advisory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空字节或NULL字符转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Expressway Series 和 Cisco TelePresence Video Communication Server 路径遍历漏洞
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 n/a -

II. Public POCs for CVE-2022-20812

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III. Intelligence Information for CVE-2022-20812

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Vendor Advisories for CVE-2022-20812 (2)

Same Patch Batch · Cisco · 2022-07-06 · 10 CVEs total

CVE-2022-20813 9.0 CRITICAL Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
CVE-2022-20808 7.7 HIGH Cisco Smart Software Manager On-Prem Denial of Service Vulnerability
CVE-2022-20859 6.5 MEDIUM Cisco Unified Communications Products Access Control Vulnerability
CVE-2022-20791 6.5 MEDIUM Cisco Unified Communications Products Arbitrary File Read Vulnerability
CVE-2022-20815 6.1 MEDIUM Cisco Unified Communications Products Cross-Site Scripting Vulnerability
CVE-2022-20800 6.1 MEDIUM Cisco Unified Communications Products Cross-Site Scripting Vulnerability
CVE-2022-20752 5.3 MEDIUM Cisco Unified Communications Products Timing Attack Vulnerability
CVE-2022-20768 4.9 MEDIUM Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulne
CVE-2022-20862 4.3 MEDIUM Cisco Unified Communications Manager Arbitrary File Read Vulnerability

IV. Related Vulnerabilities

Same product: Cisco TelePresence Video Communication Server (VCS) Expressway
Same vendor: Cisco
Same weakness: CWE-158

V. Comments for CVE-2022-20812

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