CVE-2020-5759

HIGH

Description

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted "unset" command.

References

https://www.tenable.com/cve/CVE-2020-5759

https://www.tenable.com/security/research/tra-2020-42

Details

Source: MITRE

Published: 2020-07-17

Updated: 2020-07-23

Type: CWE-78

Risk Information

CVSS v2.0

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Vulnerable Software

Configuration 1

AND

OR

cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:*

Configuration 2

AND

OR

cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:*

Configuration 3

AND

OR

cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:*

OR

cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:*