PT-2020-18649 · Grandstream · Grandstream Ucm6200 Series

Published 2020-03-30 · Updated 2020-03-31 · CVE-2020-5726

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Grandstream UCM6200 series versions prior to 1.0.20.22

Description The issue allows a remote unauthenticated attacker to perform an SQL injection via the CTI server on port 8888. This can be achieved by invoking the challenge action with a crafted username, potentially leading to the discovery of user passwords.

Recommendations For Grandstream UCM6200 series versions prior to 1.0.20.22, update to version 1.0.20.22 or later to resolve the issue. As a temporary workaround, consider restricting access to the CTI server on port 8888 to minimize the risk of exploitation.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2020-5726

Affected Products

Grandstream Ucm6200 Series

References · 6

• 🔥 https://tenable.com/security/research/tra-2020-17 · Exploit
• 🔥 https://exploit-db.com/exploits/48270 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-5726 · Security Note
• https://osv.dev/vulnerability/CVE-2020-5726 · Vendor Advisory
• http://packetstormsecurity.com/files/156977/Grandstream-UCM6200-Series-CTI-Interface-SQL-Injection.html · Note
• https://t.me/cvenotify/2267 · Telegram Post