CVE-2022-20754— 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是美国思科（Cisco）公司的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 Expressway Series 存在安全漏洞，该漏洞源于用户提供的命令参数的输入验证不足。该漏洞可能允许经过身份验证的远程攻击者对应用程序具有读/写权限，从而在受影响设备的底层操作系统上进行目录遍历攻击并覆盖文件。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2022-20754
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 web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read/write privileges to the application to write files or execute arbitrary code on the underlying operating system of an affected device as the root user. 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
相对路径遍历
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Expressway Series 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Expressway Series是美国思科（Cisco）公司的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 Expressway Series 存在安全漏洞，该漏洞源于用户提供的命令参数的输入验证不足。该漏洞可能允许经过身份验证的远程攻击者对应用程序具有读/写权限，从而在受影响设备的底层操作系统上进行目录遍历攻击并覆盖文件。
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-2022-20754
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2022-20754 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-filewrite-87Q5YRk vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2022-04-06 · 12 CVEs total
| CVE-2022-20755 | 9.0 CRITICAL | Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities |
| CVE-2022-20756 | 8.6 HIGH | Cisco Identity Services Engine RADIUS Service Denial of Service Vulnerability |
| CVE-2022-20762 | 7.8 HIGH | Cisco Ultra Cloud Core - Subscriber Microservices Infrastructure Privilege Escalation Vuln |
| CVE-2022-20774 | 6.8 MEDIUM | Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware Cross-Site Request |
| CVE-2022-20782 | 6.5 MEDIUM | Cisco Identity Services Engine Sensitive Information Disclosure Vulnerability |
| CVE-2022-20665 | 6.0 MEDIUM | Cisco StarOS Command Injection Vulnerability |
| CVE-2022-20784 | 5.8 MEDIUM | Cisco Web Security Appliance Filter Bypass Vulnerability |
| CVE-2022-20741 | 5.4 MEDIUM | Cisco Secure Network Analytics Network Diagrams Application Cross-Site Scripting Vulnerabi |
| CVE-2022-20763 | 5.4 MEDIUM | Cisco Webex Meetings Java Deserialization Vulnerability |
| CVE-2022-20781 | 5.4 MEDIUM | Cisco Web Security Appliance Stored Cross-Site Scripting Vulnerability |
| CVE-2022-20675 | 5.3 MEDIUM | Multiple Cisco Security Products Simple Network Management Protocol Service Denial of Serv |
IV. Related Vulnerabilities
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CVE-2025-20179
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CVE-2024-20492
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CVE-2024-20497
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V. Comments for CVE-2022-20754
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