CVE-2020-21992

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Inim Electronics SmartLiving SmartLAN/G/SI <=6.x suffers from an authenticated remote command injection vulnerability. The issue exist due to the 'par' POST parameter not being sanitized when called with the 'testemail' module through web.cgi binary. The vulnerable CGI binary (ELF 32-bit LSB executable, ARM) is calling the 'sh' executable via the system() function to issue a command using the mailx service and its vulnerable string format parameter allowing for OS command injection with root privileges. An attacker can remotely execute system commands as the root user using default credentials and bypass access controls in place.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5544.phpExploit, Third Party Advisory
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5544.phpExploit, Third Party Advisory

Timeline

Published: Apr 29, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-219936.1In WEMS Limited Enterprise Manager 2.58, input passed to the GET parameter 'email' is not properly sanitized before being returned to the us CVE-2020-219949.8AVE DOMINAplus <=1.10.x suffers from clear-text credentials disclosure vulnerability that allows an unauthenticated attacker to issue a requ CVE-2020-219959.8Inim Electronics Smartliving SmartLAN/G/SI <=6.x uses default hardcoded credentials. An attacker could exploit this to gain Telnet, SSH and CVE-2020-219967.5AVE DOMINAplus <=1.10.x suffers from an unauthenticated reboot command execution. Attackers can exploit this issue to cause a denial of serv CVE-2020-219977.5Smartwares HOME easy <=1.0.9 is vulnerable to an unauthenticated database backup download and information disclosure vulnerability. An attac CVE-2020-219986.1In HomeAutomation 3.3.2 input passed via the 'redirect' GET parameter in 'api.php' script is not properly verified before being used to redi CVE-2020-219998.8iWT Ltd FaceSentry Access Control System 6.4.8 suffers from an authenticated OS command injection vulnerability using default credentials. T CVE-2020-22008.8Jenkins Play Framework Plugin 1.0.2 and earlier lets users specify the path to the `play` command on the Jenkins master for a form validatio CVE-2020-220008.0HomeAutomation 3.3.2 suffers from an authenticated OS command execution vulnerability using custom command v0.1 plugin. This can be exploite CVE-2020-220019.8HomeAutomation 3.3.2 suffers from an authentication bypass vulnerability when spoofing client IP address using the X-Forwarded-For header wi CVE-2020-220027.5An Unauthenticated Server-Side Request Forgery (SSRF) vulnerability exists in Inim Electronics Smartliving SmartLAN/G/SI <=6.x within the Ge CVE-2020-220076.8OS Command Injection vulnerability in OKER G955V1 v1.03.02.20161128, allows physical attackers to interrupt the boot sequence and execute ar