CVE-2021-34575

Information Exposure in mymbCONNECT24, mbCONNECT24 <= 2.8.0

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In MB connect line mymbCONNECT24, mbCONNECT24 in versions <= 2.8.0 an unauthenticated user can enumerate valid users by checking what kind of response the server sends.

En MB connect line mymbCONNECT24, mbCONNECT24 versiones anteriores a 2.8.0 incluyéndolas, un usuario no autenticado puede enumerar usuarios válidos al comprobar qué tipo de respuesta envía el servidor

*Credits: OTORIO reported the vulnerabilities to MB connect line. CERT@VDE coordinated.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-10 CVE Reserved
2021-08-02 CVE Published
2024-04-07 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy

CAPEC

References (1)

URL	Tag	Source
https://cert.vde.com/de-de/advisories/vde-2021-030	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mbconnectline Search vendor "Mbconnectline"		Mbconnect24 Search vendor "Mbconnectline" for product "Mbconnect24"				<= 2.8.0 Search vendor "Mbconnectline" for product "Mbconnect24" and version " <= 2.8.0"		-		Affected
Mbconnectline Search vendor "Mbconnectline"		Mymbconnect24 Search vendor "Mbconnectline" for product "Mymbconnect24"				<= 2.8.0 Search vendor "Mbconnectline" for product "Mymbconnect24" and version " <= 2.8.0"		-		Affected