CVEvulnerability

CVE-2020-21992

8.8 HIGH Published 2021-04-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-04-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
Weaknesses
CWE-78

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.

Affected configurations

• inim smartliving 505 firmware (<= 6.0) • inim smartliving 515 firmware (<= 6.0) • inim smartliving 1050 firmware (<= 6.0) • inim smartliving 1050g3 firmware (<= 6.0) • inim smartliving 10100l firmware (<= 6.0) • inim smartliving 10100lg3 firmware (<= 6.0)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References