CVE-2020-5724 : The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injectio

The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the challenge action with a crafted username and discover user passwords.

Published 2020-03-30 20:15:20

Updated 2020-03-30 21:49:41

Source Tenable Network Security, Inc.

View at NVD, CVE.org

Vulnerability category: Sql Injection

Products affected by CVE-2020-5724

Grandstream » Ucm6204 Firmware
Versions before (<) 1.0.20.22
cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Grandstream » Ucm6204 » Version: N/A
Grandstream » Ucm6202 Firmware
Versions before (<) 1.0.20.22
cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Grandstream » Ucm6202 » Version: N/A
Grandstream » Ucm6208 Firmware
Versions before (<) 1.0.20.22
cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Grandstream » Ucm6208 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-5724

EPSS FAQ

52.86%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 98 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-5724

Grandstream UCM62xx IP PBX WebSocket Blind SQL Injection Credential Dump

Disclosure Date: 2020-03-30

First seen: 2022-12-23

auxiliary/gather/grandstream_ucm62xx_sql_account_guess

This module uses a blind SQL injection (CVE-2020-5724) affecting the Grandstream UCM62xx IP PBX to dump the users table. The injection occurs over a websocket at the websockify endpoint, and specifically occurs when the user requests the challenge (as part of a

More information

CVSS scores for CVE-2020-5724

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2020-5724

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
Assigned by:
- nvd@nist.gov (Primary)
- vulnreport@tenable.com (Secondary)

References for CVE-2020-5724

https://www.tenable.com/security/research/tra-2020-17

Grandstream UCM62xx Multiple SQL Injections - Research Advisory | Tenable®
Exploit;Third Party Advisory

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