CVE-2020-21992
8.8 · HIGHOverview
CVE-2020-21992 is a high-severity vulnerability affecting inim smartliving_505_firmware. It was published on April 29, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from inim. Update smartliving_505_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| inim | smartliving_505_firmware | 0 | Affected |
| inim | smartliving_515_firmware | 0 | Affected |
| inim | smartliving_1050_firmware | 0 | Affected |
| inim | smartliving_1050g3_firmware | 0 | Affected |
| inim | smartliving_10100l_firmware | 0 | Affected |
| inim | smartliving_10100lg3_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2020-21992?
CVE-2020-21992 is a high-severity vulnerability affecting inim smartliving_505_firmware. It was published on April 29, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2020-21992?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-21992?
Check the references section for vendor advisories and patches from inim. Update smartliving_505_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-21992?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-21992 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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