CVE-2021-20991— Fibaro Home Center Authenticated remote command execution
Quick assessment
Affected
Fibar Group S.A Fibaro Home Center
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
FIBARO Home Center 2是波兰FIBARO公司的一个应用系统。一个系统集成系统。 Fibaro Home Center 2 存在命令注入漏洞，该漏洞源于固件版本4.540及以上的Lite设备中，经过认证的用户可以使用命令注入漏洞以root用户的身份运行命令。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1548 · Abuse Elevation Control Mechanism
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I. Basic Information for CVE-2021-20991
Vulnerability Information
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Vulnerability Title
Fibaro Home Center Authenticated remote command execution
Source: CVE Program / CVE List V5
Vulnerability Description
In Fibaro Home Center 2 and Lite devices with firmware version 4.540 and older an authenticated user can run commands as root user using a command injection vulnerability.
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
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
FIBARO Home Center 2 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FIBARO Home Center 2是波兰FIBARO公司的一个应用系统。一个系统集成系统。 Fibaro Home Center 2 存在命令注入漏洞，该漏洞源于固件版本4.540及以上的Lite设备中，经过认证的用户可以使用命令注入漏洞以root用户的身份运行命令。
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 |
|---|---|---|---|---|
| Fibar Group S.A | Fibaro Home Center | Home Center 2 ~ 4.540 | - |
|
II. Public POCs for CVE-2021-20991
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Exploits & Public PoCs for CVE-2021-20991 (1)
-
Packet Storm x_refsource_MISC
Mailing List Discussions for CVE-2021-20991 (1)
Security Blog Posts for CVE-2021-20991 (1)
-
https://www.iot-inspector.com/blog/advisory-fibaro-home-center/ x_refsource_CONFIRM
Same Patch Batch · Fibar Group S.A · 2021-04-19 · 4 CVEs total
| CVE-2021-20992 | 8.1 HIGH | Fibaro Home Center Unencrypted management interface |
| CVE-2021-20990 | 7.5 HIGH | Fibaro Home Center Unauthenticated access to shutdown, reboot and reboot to recovery mode |
| CVE-2021-20989 | 5.9 MEDIUM | Fibaro Home Center Insufficient remote access server authorization |
IV. Related Vulnerabilities
V. Comments for CVE-2021-20991
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