PT-2020-18679 · Grandstream · Grandstream Ucm6200

Published 2020-07-17 · Updated 2020-07-23 · CVE-2020-5758

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Grandstream UCM6200 series firmware version 1.0.20.23 and below

Description The issue allows an authenticated remote attacker to execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API, specifically via HTTP. This is an OS command injection vulnerability.

Recommendations For Grandstream UCM6200 series firmware version 1.0.20.23 and below, update to a version above 1.0.20.23 to resolve the issue. As a temporary workaround, consider restricting access to the "Old" HTTPS API to minimize the risk of exploitation.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-5758

Affected Products

Grandstream Ucm6200

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2020-5758 · Security Note
• https://osv.dev/vulnerability/CVE-2020-5758 · Vendor Advisory
• https://tenable.com/security/research/tra-2020-42 · Note
• https://tenable.com/cve/CVE-2020-5758 · Note